20 Commits

Author SHA1 Message Date
058b437c3f fix: add ./ prefix to subpath export keys in package.json 2026-05-22 06:26:56 +00:00
6fb633c05b chore: add LICENSE, README, update package.json and AGENTS.md for npm release prep 2026-05-22 06:17:54 +00:00
e45b8c0cc0 chore: mark final review/complete-library task completed — all 38/38 tasks done 2026-05-21 22:56:22 +00:00
fab0b64f0b chore: update api/public-exports task status to completed 2026-05-21 22:55:56 +00:00
dd96ceb4f8 feat: wire all barrel exports, resolve conflicts, add 8 sub-path import tests 2026-05-21 22:55:37 +00:00
4fcd544261 chore: update review/reactive-and-hosts task status to completed 2026-05-21 22:40:57 +00:00
1233266ffd chore: update meta-reactive-layer task status to completed 2026-05-21 22:31:22 +00:00
b297203a5d chore: update max-concurrency task status, spawn next generation 2026-05-21 22:29:25 +00:00
4df8698a3d Merge branch 'feat/reactive/max-concurrency' 2026-05-21 22:29:05 +00:00
1a12410229 feat: implement maxConcurrency reactive counting semaphore with 20 unit tests 2026-05-21 22:29:02 +00:00
72356b9758 chore: update host-reactive task status to completed 2026-05-21 22:21:00 +00:00
793b6e513f Merge branch 'feat/host/reactive' 2026-05-21 22:20:33 +00:00
8b7f4f985a feat: implement ReactiveHostConfig with WorkflowNode, ReactiveContext, precondition computation and 34 integration tests 2026-05-21 22:20:30 +00:00
a72c3173e7 chore: update review-foundation task status 2026-05-21 22:18:37 +00:00
ee3da90b63 chore: update task statuses completed 2026-05-21 22:18:03 +00:00
270bd7cd69 chore: merge reactive-node-status, update retry-semantics task status 2026-05-21 22:17:41 +00:00
e8b62c0c58 Merge branch 'feat/reactive-node-status' 2026-05-21 22:17:29 +00:00
000a1e04c5 feat: add retry semantics tests with requestIdToNodeKey reverse map 2026-05-21 22:17:11 +00:00
4cf644f734 Merge branch 'feat/reactive-retry-semantics' 2026-05-21 22:13:33 +00:00
d63a301cea Implement retry semantics: requestIdToNodeKey reverse map, setRequestId method, full-history getEvents 2026-05-21 22:10:31 +00:00
31 changed files with 2239 additions and 153 deletions

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## Memory Tools (via @alkdev/open-memory plugin)
# @alkdev/flowgraph — Agent Guide
You have access to two tools for managing your context and accessing session history:
Project-specific context for AI agents working on this codebase.
### memory({tool: "...", args: {...}})
## What This Is
Read-only tool for introspecting your session history and context state. Available operations:
- `memory({tool: "help"})` — full reference with examples
- `memory({tool: "summary"})` — quick counts of projects, sessions, messages, todos
- `memory({tool: "sessions"})` — list recent sessions (useful for finding past work)
- `memory({tool: "children", args: {sessionId: "ses_..."}})` — list sub-agent sessions spawned from a parent
- `memory({tool: "messages", args: {sessionId: "..."}})` — read a session's conversation
- `memory({tool: "messages", args: {sessionId: "...", role: "assistant"}})` — read only assistant messages
- `memory({tool: "messages", args: {sessionId: "...", showTools: true}})` — include tool-call output
- `memory({tool: "message", args: {messageId: "msg_..."}})` — read a single message by ID
- `memory({tool: "search", args: {query: "..."}})` — search across all conversations
- `memory({tool: "compactions", args: {sessionId: "..."}})` — view compaction checkpoints
- `memory({tool: "context"})` — check your current context window usage
DAG-based workflow orchestration library. Wraps graphology `DirectedGraph`, enforces DAG invariants, provides ujsx template composition and reactive signal-driven execution. Sits between `@alkdev/operations` (what can be called) and `@alkdev/alkhub` (what was called) — defines *how calls are orchestrated*.
### memory_compact()
## Build & Test Commands
Trigger compaction on the current session. This summarizes the conversation so far to free context space.
```bash
npm run build # tsup (ESM + CJS + dts + sourcemaps)
npm run build:tsc # tsc type-check only
npm run lint # tsc --noEmit
npm run test # vitest run
npm run test:watch # vitest watch
npm run test:coverage # vitest run --coverage
```
**When to use memory_compact:**
- When context is above 80% (check with `memory({tool: "context"})`)
- When you notice you're losing track of earlier conversation details
- At natural breakpoints in multi-step tasks (after completing a subtask, before starting a new one)
- When the system prompt shows a yellow/red/critical context warning
- Proactively, rather than waiting for automatic compaction at 92%
Always run `npm run lint && npm run test` after making changes.
**When NOT to use memory_compact:**
- When context is below 50% (it wastes a compaction cycle)
- In the middle of a complex edit that you need immediate context for
- When the task is nearly complete (just finish the task instead)
## Source Structure
Compaction preserves your most important context in a structured summary — you will continue the session with the summary as your starting point.
```
src/
index.ts # Barrel — re-exports all sub-modules
component/ # ujsx workflow components (Operation, Sequential, Parallel, Conditional, Map)
host/ # HostConfig implementations (GraphologyHostConfig, ReactiveHostConfig)
schema/ # TypeBox schemas, enums, node/edge attribute types
graph/ # FlowGraph class (construction, mutation, query, serialization)
reactive/ # WorkflowReactiveRoot, signal-driven status, event log projection
analysis/ # Pure functions: typeCompat, validate, topologicalOrder, parallelGroups, criticalPath
error/ # FlowgraphError hierarchy
```
## Worktree Tool (via @alkimiadev/open-coordinator plugin)
## Subpath Exports
You have access to the `worktree` tool for git worktree management and session coordination. Call with `{action, args}`:
The package has 8 export subpaths. Root `@alkdev/flowgraph` re-exports everything. Subpath imports make dependencies explicit:
### Coordinator Operations (available when session is not spawned by another session)
| Subpath | Key Exports |
|---------|-------------|
| `/graph` | `FlowGraph`, `FlowGraphOptions`, `OperationSpec`, `CallEventMapValue` |
| `/schema` | `CallStatus`, `NodeStatus`, `EdgeType`, `OperationType`, all node/edge attribute types |
| `/component` | `Operation`, `Sequential`, `Parallel`, `Conditional`, `Map` |
| `/host` | `GraphologyHostConfig`, `ReactiveHostConfig` |
| `/analysis` | `typeCompat`, `buildTypeEdges`, `validateGraph`, `validateSchema`, `validate`, `validateTemplate`, `topologicalOrder`, `parallelGroups`, `criticalPath` |
| `/reactive` | `WorkflowReactiveRoot`, `EventLogProjection`, `WorkflowNode`, `FailurePolicy` |
| `/error` | `FlowgraphError`, `ConstructionError`, `CycleError`, `InvalidInputError`, `InvalidTransitionError` |
- `worktree({action: "list"})` — List git worktrees
- `worktree({action: "dashboard"})` — Worktree dashboard with session info
- `worktree({action: "spawn", args: {tasks: [...], prompt: "..."}})` — Spawn parallel worktrees + sessions
- `worktree({action: "sessions"})` — Query spawned session status
- `worktree({action: "message", args: {sessionID: "...", message: "..."}})` — Message a session
- `worktree({action: "abort", args: {sessionID: "..."}})` — Abort a session
- `worktree({action: "cleanup", args: {action: "remove", pathOrBranch: "..."}})` — Remove worktree
- `worktree({action: "help"})` — Show all available operations
## Key Patterns
### Implementation Operations (available when session is spawned by a coordinator)
- **TypeBox schema + Static type pairs**: Every schema is exported as both a const (runtime) and an inferred type. `const FooSchema = Type.Object({...}); type Foo = Static<typeof FooSchema>;`
- **Delegation model**: `FlowGraph` wraps a graphology `DirectedGraph` (does not extend it). `flowGraph.graph` is an escape hatch that bypasses validation.
- **DAG enforcement**: `addEdge()` throws `CycleError` if the edge would create a cycle. `fromJSON()` validates DAG invariants on deserialization.
- **Event log as source of truth**: Call protocol events (`call.requested`, `call.responded`, `call.error`, `call.aborted`, `call.completed`) are appended to `WorkflowReactiveRoot`. Status/results are derived projections.
- **Signal-driven execution**: `@preact/signals-core` powers `WorkflowReactiveRoot`. `preconditions`, `canStart`, `blockedByFailure` are `ReadonlySignal<boolean>` computed from predecessor status.
- **`dispose()` is mandatory**: `WorkflowReactiveRoot.dispose()` must be called to release signal subscriptions.
- `worktree({action: "current"})` — Show your worktree mapping
- `worktree({action: "notify", args: {message: "...", level: "info|blocking"}})` — Report to coordinator
- `worktree({action: "status"})` — Show worktree git status
## Architecture Docs
The plugin auto-injects `workdir` for bash commands when the session is mapped to a worktree.
`docs/architecture/` contains detailed specs (all `status: reviewed`):
- `README.md` — overview, relationship to sibling packages, design decisions
- `flowgraph-api.md` — FlowGraph class full API
- `consumer-integration.md` — end-to-end integration walkthrough (5 phases)
- `schema.md` — TypeBox Module, all node/edge attribute schemas
- `operation-graph.md` — static graph from OperationSpecs
- `call-graph.md` — dynamic graph from call events
- `workflow-templates.md` — ujsx components, composition rules, template→DAG hydration
- `host-configs.md` — GraphologyHostConfig, ReactiveHostConfig
- `reactive-execution.md` — signal-driven status propagation, lifecycle, error boundaries
- `analysis.md` — type-compatibility checking, precondition validation, execution ordering
- `error-handling.md` — FlowgraphError hierarchy
- `build-distribution.md` — package structure, exports map
- `decisions/` — ADRs 001006
Consult these for anything non-trivial. The README is surface-level; architecture docs are the specification.
## Constraints for Agent Modifications
- **Never add cycles** — this is a DAG-only library. Any edge that would create a cycle must throw `CycleError`.
- **Never mutate operation graphs after construction** — `fromSpecs()` graphs are conventionally immutable.
- **Keep schema as pure data** — `src/schema/` contains TypeBox schemas and types only, no runtime logic.
- **Keep analysis as pure functions** — `src/analysis/` functions take a `FlowGraph` or `DirectedGraph` as input and return results without side effects.
- **Maintain the delegation model** — `FlowGraph` delegates to graphology. Don't expose raw graphology methods that could violate DAG invariants without explicit validation.
- **tsup builds all subpath entries**`tsup.config.ts` lists every subpath. If you add a new top-level module, add the entry there and update `package.json` exports.

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This project is dual-licensed under either of the following:
- MIT License (LICENSE-MIT)
- Apache License 2.0 (LICENSE-APACHE)
You may choose either license at your option.

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# @alkdev/flowgraph
DAG-based workflow orchestration over graphology, with ujsx template composition and reactive signal-driven execution.
## What This Does
Flowgraph sits between `@alkdev/operations` (which defines *what can be called*) and `@alkdev/alkhub` (which records *what was called*). Flowgraph defines **how calls are orchestrated** — the structure, validation, and execution of workflows.
Three conceptual graphs, each for a different purpose:
1. **Operation Graph** — static graph built from `OperationSpec`s at startup. Nodes are operations, edges are type-compatibility relationships. Enables cycle detection, topological ordering, and validation.
2. **Call Graph** — dynamic graph built from call protocol events at runtime. Nodes are call invocations with status/timestamps, edges are parent-child relationships. Enables abort cascading and observability.
3. **Workflow Template** — declarative ujsx tree defining a reusable workflow structure. A validated path through the operation graph, instantiated as a call graph at runtime.
**The graph is the specification. The template is the authoring surface. The call graph is the execution record.**
## Installation
```bash
npm install @alkdev/flowgraph
```
Peer dependency: `@alkdev/operations ^0.1.0`
## Quick Start
### Build an Operation Graph
```typescript
import { FlowGraph } from "@alkdev/flowgraph/graph";
import type { OperationSpec } from "@alkdev/flowgraph/graph";
const specs: OperationSpec[] = [
{ namespace: "task", name: "classify", type: "query", version: "1.0.0", inputSchema: {...}, outputSchema: {...} },
{ namespace: "task", name: "enrich", type: "query", version: "1.0.0", inputSchema: {...}, outputSchema: {...} },
{ namespace: "task", name: "summarize", type: "mutation", version: "1.0.0", inputSchema: {...}, outputSchema: {...} },
];
const graph = FlowGraph.fromSpecs(specs);
// Type-compatibility edges added automatically
graph.hasEdge("task.classify", "task.enrich");
```
### Define a Workflow Template
```typescript
import { h } from "@alkdev/ujsx";
import { Operation, Sequential, Parallel, Conditional } from "@alkdev/flowgraph/component";
const template = h(Sequential, {},
h(Operation, { name: "task.classify" }),
h(Conditional, {
test: (results) => results["task.classify"].output.confidence > 0.8,
},
h(Parallel, {},
h(Operation, { name: "task.enrich" }),
h(Operation, { name: "task.summarize" }),
),
h(Operation, { name: "task.classify" }),
),
);
```
### Validate the Template
```typescript
import { validateTemplate } from "@alkdev/flowgraph/analysis";
const errors = validateTemplate(template, graph);
if (errors.length > 0) {
for (const error of errors) {
console.error(`[${error.type}]`, error);
}
}
```
### Populate a Call Graph from Events
```typescript
import { FlowGraph } from "@alkdev/flowgraph/graph";
const callGraph = FlowGraph.fromCallEvents(eventArray);
callGraph.filterByStatus("running");
callGraph.children("req_abc123");
callGraph.lineage("req_xyz789");
callGraph.duration("req_abc123");
```
### Drive Reactive Execution
```typescript
import { WorkflowReactiveRoot } from "@alkdev/flowgraph/reactive";
const workflow = new WorkflowReactiveRoot(dag, {
failurePolicy: "abort-dependents",
});
// Append call protocol events — status derives reactively
workflow.append({ type: "call.requested", requestId: "req_1", operationId: "task.classify", input: {}, timestamp: "..." });
workflow.append({ type: "call.responded", requestId: "req_1", output: { confidence: 0.95 }, timestamp: "..." });
// Read reactive state
workflow.getStatus("task.enrich");
workflow.getResult("task.classify");
// Abort cascading
workflow.abortAll();
workflow.dispose();
```
## Subpath Exports
| Subpath | Purpose | Key Exports |
|---------|---------|-------------|
| `@alkdev/flowgraph` | Root — re-exports everything | All public types and functions |
| `@alkdev/flowgraph/graph` | Core DAG class | `FlowGraph`, `FlowGraphOptions`, `OperationSpec`, `CallEventMapValue` |
| `@alkdev/flowgraph/schema` | TypeBox schemas and types | `CallStatus`, `NodeStatus`, `EdgeType`, `OperationType`, `CallNodeAttrs`, `OperationNodeAttrs`, `OperationEdgeAttrs`, `CallEdgeAttrs`, `TemplateEdgeAttrs`, `CallResult`, `FlowGraphSerialized` |
| `@alkdev/flowgraph/component` | ujsx workflow components | `Operation`, `Sequential`, `Parallel`, `Conditional`, `Map` |
| `@alkdev/flowgraph/host` | Rendering backends | `GraphologyHostConfig`, `ReactiveHostConfig` |
| `@alkdev/flowgraph/analysis` | Validation and analysis functions | `typeCompat`, `buildTypeEdges`, `validateGraph`, `validateSchema`, `validate`, `validateTemplate`, `validatePreconditions`, `topologicalOrder`, `parallelGroups`, `criticalPath`, `reachableFrom` |
| `@alkdev/flowgraph/reactive` | Reactive execution engine | `WorkflowReactiveRoot`, `EventLogProjection`, `WorkflowNode`, `ReactiveContext`, `FailurePolicy`, `AggregateStatus` |
| `@alkdev/flowgraph/error` | Error hierarchy | `FlowgraphError`, `ConstructionError`, `DuplicateNodeError`, `DuplicateEdgeError`, `NodeNotFoundError`, `CycleError`, `InvalidInputError`, `InvalidTransitionError` |
## Core API: FlowGraph Class
`FlowGraph<NodeAttrs, EdgeAttrs>` wraps a graphology `DirectedGraph` and enforces DAG invariants. It delegates graph operations to graphology while adding flowgraph-specific construction, mutation, and query methods.
### Factory Methods
```typescript
FlowGraph.fromSpecs(specs: OperationSpec[]): OperationGraph
FlowGraph.fromCallEvents(events: CallEventMapValue[]): CallGraph
FlowGraph.fromJSON(data: FlowGraphSerialized): FlowGraph
```
### Node Operations
```typescript
graph.addNode(key, attrs) // throws DuplicateNodeError
graph.removeNode(key) // throws NodeNotFoundError
graph.updateNode(key, partialAttrs) // throws NodeNotFoundError
graph.hasNode(key): boolean
graph.getNodeAttributes(key): NodeAttrs
graph.forEachNode(callback): void
```
### Edge Operations
```typescript
graph.addEdge(source, target, attrs?) // throws NodeNotFoundError, DuplicateEdgeError, CycleError
graph.removeEdge(source, target) // no-op if not found
graph.hasEdge(source, target): boolean
graph.getEdgeAttributes(source, target): EdgeAttrs
graph.forEachEdge(callback): void
```
### Traversal
```typescript
graph.topologicalOrder(): string[]
graph.ancestors(nodeId): string[]
graph.descendants(nodeId): string[]
graph.predecessors(nodeId): string[]
graph.successors(nodeId): string[]
graph.reachableFrom(nodeIds): Set<string>
graph.hasCycles(): boolean
graph.findCycles(): string[][]
```
### Call Graph Convenience
```typescript
graph.addCall(attrs: CallNodeAttrs): void
graph.addDependency(source, target): void
graph.updateStatus(requestId, status, extra?): void // throws InvalidTransitionError
graph.updateCall(requestId, partialAttrs): void
graph.removeCall(requestId): void
graph.updateFromEvent(event: CallEventMapValue): void
graph.filterByStatus(status: CallStatus): string[]
graph.getRoots(): string[]
graph.children(requestId): string[]
graph.duration(requestId): number
graph.lineage(requestId): string[]
```
### Serialization
```typescript
graph.export(): FlowGraphSerialized
graph.toJSON(): FlowGraphSerialized
graph.toString(): string
```
### Escape Hatch
```typescript
graph.graph // → DirectedGraph (raw graphology instance)
```
Direct mutation via `graph.graph` bypasses flowgraph validation. Use with caution.
## Schema Enums
| Enum | Values |
|------|--------|
| `CallStatus` | `pending`, `running`, `completed`, `failed`, `aborted` |
| `NodeStatus` | `idle`, `waiting`, `ready`, `running`, `completed`, `failed`, `skipped`, `aborted` |
| `EdgeType` | `triggered`, `depends_on`, `typed`, `sequential`, `conditional` |
| `OperationType` | `query`, `mutation`, `subscription` |
Call status transitions: `pending → running → completed|failed|aborted`. Terminal states are immutable. `InvalidTransitionError` is thrown on invalid transitions.
## Workflow Components
| Component | Props | Behavior |
|-----------|-------|----------|
| `<Operation>` | `name`, `input?`, `retries?`, `timeout?` | Declares an operation node in the workflow |
| `<Sequential>` | `id?` | Children execute in order; edges are `sequential` |
| `<Parallel>` | `id?`, `maxConcurrency?` | Children execute concurrently |
| `<Conditional>` | `test`, `else?` | Branches on `test(results)`. Children = then-branch, `else` prop = else-branch |
| `<Map>` | `over`, `as` | Iterates over `over` collection, binding each item as `as` variable |
## Analysis Functions
```typescript
import { typeCompat, validateTemplate, topologicalOrder, parallelGroups, criticalPath } from "@alkdev/flowgraph/analysis";
typeCompat(outputSchema, inputSchema): TypeCompatResult | undefined
validateTemplate(template, operationGraph): AnyValidationError[]
topologicalOrder(graph): string[]
parallelGroups(graph): string[][] // topological generations
criticalPath(graph): string[] // longest path
validateGraph(graph): GraphValidationError[]
validateSchema(graph, schema): ValidationError[]
validate(graph, schema): AnyValidationError[] // combined
```
## Reactive Execution
`WorkflowReactiveRoot` implements `EventLogProjection` — call protocol events are the source of truth, status/results are derived projections.
```typescript
const workflow = new WorkflowReactiveRoot(dag, {
failurePolicy: "abort-dependents", // or "continue-running"
parallelGroups: { group1: { siblings: ["a", "b"], maxConcurrency: 2 } },
});
// Per-node reactive signals
workflow.statusMap // Map<string, Signal<NodeStatus>>
workflow.preconditions // Map<string, ReadonlySignal<boolean>> — all predecessors completed/skipped
workflow.canStart // Map<string, ReadonlySignal<boolean>> — preconditions + concurrency
workflow.blockedByFailure // Map<string, ReadonlySignal<boolean>> — any predecessor failed/aborted
workflow.resultMap // Map<string, ReadonlySignal<CallResult | undefined>>
// Event-driven updates
workflow.append(event: CallEventMapValue): void
// Queries
workflow.getStatus(nodeId): NodeStatus
workflow.getResult(nodeId): CallResult | undefined
workflow.isComplete(): boolean
workflow.getAggregateStatus(): AggregateStatus
// Lifecycle
workflow.abortAll(): void
workflow.abortNode(nodeId): void
workflow.dispose(): void // mandatory cleanup — releases signal subscriptions
```
## Error Hierarchy
```
FlowgraphError (base)
├── ConstructionError
│ ├── DuplicateNodeError (readonly key)
│ ├── DuplicateEdgeError (readonly source, target)
│ ├── NodeNotFoundError (readonly key)
│ ├── CycleError (readonly cycles: string[][])
│ └── InvalidInputError (readonly errors: ValidationError[])
└── InvalidTransitionError (readonly requestId, from, to)
```
## Design Principles
1. **DAG-only, no cycles**`addEdge()` rejects cycle-creating edges at mutation time (ADR-002). This differs from taskgraph, which allows cycles and detects them after the fact.
2. **Storage is decoupled** — flowgraph handles in-memory graph construction, validation, and analysis. Persistence is the caller's concern. `export()`/`fromJSON()` provides the serialization boundary.
3. **Template → DAG → Execution is a pipeline** — each representation serves a different phase and can exist independently. Validate a template without executing it. Build a call graph from events without a template. Run reactive execution directly from a DAG.
4. **Event log as source of truth** — call protocol events (`call.requested`, `call.responded`, `call.error`, `call.aborted`, `call.completed`) are the ground truth. Status, results, and the call graph are projections derived from the event log (ADR-005).
5. **Delegation, not inheritance**`FlowGraph` wraps a graphology `DirectedGraph`, exposing a curated API. The raw graphology instance is available via the `.graph` escape hatch.
## For AI Agents
When working with this library programmatically:
- **Use subpath imports** — `@alkdev/flowgraph/graph`, `@alkdev/flowgraph/analysis`, etc. The root export re-exports everything but subpath imports make dependencies explicit.
- **Always call `dispose()` on `WorkflowReactiveRoot`** — signal subscriptions leak without it.
- **Function-valued props don't survive JSON serialization** — `Conditional.test` and `Map.over` with function values need runtime resolution. Use string references for stored templates.
- **`fromSpecs()` graphs are conventionally immutable** — don't mutate operation graphs after construction. If the registry changes, rebuild via `fromSpecs()`.
- **Call graph mutation uses event protocol** — use `updateFromEvent()` or `addCall()`/`updateStatus()`, not direct node mutation.
- **`typeCompat()` returns `undefined` for `unknown`/`any` schemas** — this means "no meaningful check possible", not "incompatible".
- **Architecture specs are in `docs/architecture/`** — detailed design decisions, ADRs, and open questions live there. This README is a surface-level guide. Consult the architecture docs for anything non-trivial.
## Dependencies
| Package | Relationship |
|---------|-------------|
| `graphology` | Direct — the underlying directed graph data structure |
| `graphology-dag` | Direct — topological sort, cycle detection, DAG traversal |
| `@alkdev/ujsx` | Direct — `UNode` trees and `HostConfig` for workflow template rendering |
| `@alkdev/typebox` | Direct — all schemas are TypeBox Modules |
| `@preact/signals-core` | Direct — reactive state management for `WorkflowReactiveRoot` |
| `@alkdev/operations` | **Peer** — provides `OperationSpec`, `OperationRegistry`, call event types |
## License
Dual-licensed under [MIT](LICENSE-MIT) or [Apache-2.0](LICENSE-APACHE) at your option.

View File

@@ -17,7 +17,7 @@
"default": "./dist/index.cjs"
}
},
"/component": {
"./component": {
"import": {
"types": "./dist/component/index.d.ts",
"default": "./dist/component/index.js"
@@ -27,7 +27,7 @@
"default": "./dist/component/index.cjs"
}
},
"/host": {
"./host": {
"import": {
"types": "./dist/host/index.d.ts",
"default": "./dist/host/index.js"
@@ -37,7 +37,7 @@
"default": "./dist/host/index.cjs"
}
},
"/schema": {
"./schema": {
"import": {
"types": "./dist/schema/index.d.ts",
"default": "./dist/schema/index.js"
@@ -47,7 +47,7 @@
"default": "./dist/schema/index.cjs"
}
},
"/graph": {
"./graph": {
"import": {
"types": "./dist/graph/index.d.ts",
"default": "./dist/graph/index.js"
@@ -57,7 +57,7 @@
"default": "./dist/graph/index.cjs"
}
},
"/reactive": {
"./reactive": {
"import": {
"types": "./dist/reactive/index.d.ts",
"default": "./dist/reactive/index.js"
@@ -67,7 +67,7 @@
"default": "./dist/reactive/index.cjs"
}
},
"/analysis": {
"./analysis": {
"import": {
"types": "./dist/analysis/index.d.ts",
"default": "./dist/analysis/index.js"
@@ -77,7 +77,7 @@
"default": "./dist/analysis/index.cjs"
}
},
"/error": {
"./error": {
"import": {
"types": "./dist/error/index.d.ts",
"default": "./dist/error/index.js"
@@ -112,6 +112,15 @@
"operations"
],
"license": "MIT OR Apache-2.0",
"repository": {
"type": "git",
"url": "git+https://git.alk.dev/alkdev/flowgraph.git"
},
"homepage": "https://git.alk.dev/alkdev/flowgraph",
"bugs": {
"url": "https://git.alk.dev/alkdev/flowgraph/issues"
},
"sideEffects": false,
"dependencies": {
"@alkdev/typebox": "^0.34.49",
"@alkdev/ujsx": "^0.1.0",

View File

@@ -1,4 +1,10 @@
type CallStatus = "pending" | "running" | "completed" | "failed" | "aborted";
import type { CallStatus } from "../schema/enums.js";
interface TypeMismatch {
path: string;
expected: string;
actual: string;
}
class FlowgraphError extends Error {
constructor(message: string) {
@@ -88,12 +94,6 @@ interface GraphValidationError {
details: unknown;
}
interface TypeMismatch {
path: string;
expected: string;
actual: string;
}
interface TypeIncompatError {
type: "type-compat";
sourceKey: string;
@@ -116,10 +116,8 @@ export {
};
export type {
CallStatus,
ValidationError,
GraphValidationError,
TypeMismatch,
TypeIncompatError,
AnyValidationError,
};

View File

@@ -10,7 +10,8 @@ import {
InvalidInputError,
InvalidTransitionError,
} from "../error/index.js";
import type { CallStatus, AnyValidationError, ValidationError } from "../error/index.js";
import type { AnyValidationError, ValidationError } from "../error/index.js";
import type { CallStatus } from "../schema/enums.js";
import {
findCycles,
reachableFrom as reachableFromFn,

View File

@@ -1,14 +1,5 @@
export { FlowGraph, buildTypeEdges, type FlowGraphOptions, type OperationSpec, type CallEventMapValue, type CallRequestedEvent, type CallRespondedEvent, type CallErrorEvent, type CallAbortedEvent, type CallCompletedEvent } from "./construction.js";
export {
topologicalOrder,
hasCycles,
findCycles,
ancestors,
descendants,
reachableFrom,
} from "./queries.js";
export {
validateSchema,
validateGraph,
validate,
} from "./validation.js";
} from "./queries.js";

View File

@@ -1,2 +1,4 @@
export { GraphologyHostConfig } from "./graphology.js";
export type { WorkflowTag, GraphNode, GraphContext, OperationRegistry } from "./graphology.js";
export type { WorkflowTag, GraphNode, GraphContext, OperationRegistry as GraphOperationRegistry } from "./graphology.js";
export { ReactiveHostConfig } from "./reactive.js";
export type { WorkflowNode, ReactiveContext, OperationRegistry } from "./reactive.js";

View File

@@ -1 +1,250 @@
export {};
import { signal, computed } from "@preact/signals-core";
import type { Signal, ReadonlySignal } from "@preact/signals-core";
import type { HostConfig } from "@alkdev/ujsx";
import type { NodeStatus } from "../schema/enums.js";
import type { CallResult } from "../schema/edge.js";
import type { EventLogProjection } from "../reactive/workflow.js";
import type { WorkflowTag } from "./graphology.js";
export interface OperationRegistry {
resolve(name: string): unknown;
}
export interface WorkflowNode {
key: string;
type: WorkflowTag;
status: Signal<NodeStatus>;
preconditions: ReadonlySignal<boolean>;
blockedByFailure: ReadonlySignal<boolean>;
operationId?: string;
output?: Signal<unknown>;
children: WorkflowNode[];
}
export interface ReactiveContext {
operationRegistry: OperationRegistry;
nodes: Map<string, WorkflowNode>;
statusSignals: Map<string, Signal<NodeStatus>>;
preconditions: Map<string, ReadonlySignal<boolean>>;
blockedByFailure: Map<string, ReadonlySignal<boolean>>;
resultProjection: EventLogProjection;
parentMap: Map<string, string>;
siblingMap: Map<string, string[]>;
results: Map<string, ReadonlySignal<CallResult | undefined>>;
_containerCounter: number;
}
function collectLeafPredecessors(
nodeKey: string,
ctx: ReactiveContext,
): string[] {
const parentKey = ctx.parentMap.get(nodeKey);
if (!parentKey) return [];
const parentNode = ctx.nodes.get(parentKey);
if (!parentNode) return [];
const siblings = ctx.siblingMap.get(parentKey);
if (!siblings) return [];
const idx = siblings.indexOf(nodeKey);
switch (parentNode.type) {
case "sequential": {
if (idx > 0) {
const prevKey = siblings[idx - 1]!;
const prevNode = ctx.nodes.get(prevKey);
if (prevNode && prevNode.type === "operation") {
return [prevKey];
}
return collectLeafPredecessors(prevKey, ctx);
}
return collectLeafPredecessors(parentKey, ctx);
}
case "parallel":
case "map":
case "conditional": {
return collectLeafPredecessors(parentKey, ctx);
}
default:
return [];
}
}
function computePreconditions(
node: WorkflowNode,
ctx: ReactiveContext,
): boolean {
const predecessors = collectLeafPredecessors(node.key, ctx);
if (predecessors.length === 0) return true;
return predecessors.every((predKey) => {
const predStatus = ctx.statusSignals.get(predKey);
if (!predStatus) return true;
return predStatus.value === "completed" || predStatus.value === "skipped";
});
}
function computeBlockedByFailure(
node: WorkflowNode,
ctx: ReactiveContext,
): boolean {
const predecessors = collectLeafPredecessors(node.key, ctx);
return predecessors.some((predKey) => {
const predStatus = ctx.statusSignals.get(predKey);
if (!predStatus) return false;
return predStatus.value === "failed" || predStatus.value === "aborted";
});
}
export const ReactiveHostConfig: HostConfig<WorkflowTag, WorkflowNode, ReactiveContext> = {
name: "reactive",
createRootContext(_container, options) {
const ctx: ReactiveContext = {
operationRegistry: options?.registry as OperationRegistry ?? { resolve: () => undefined },
nodes: new Map(),
statusSignals: new Map(),
preconditions: new Map(),
blockedByFailure: new Map(),
resultProjection: options?.resultProjection as EventLogProjection ?? {
append() {},
getStatus: () => "idle" as NodeStatus,
getResult: () => undefined,
getEvents: () => [],
},
parentMap: new Map(),
siblingMap: new Map(),
results: new Map(),
_containerCounter: 0,
};
return ctx;
},
createInstance(tag, props, ctx, parent) {
if (tag === "operation") {
const key = props.name as string;
const status = signal<NodeStatus>("idle");
const node: WorkflowNode = {
key,
type: "operation",
status,
preconditions: computed(() => computePreconditions(node, ctx)),
blockedByFailure: computed(() => computeBlockedByFailure(node, ctx)),
operationId: key,
output: signal<unknown>(undefined),
children: [],
};
ctx.nodes.set(key, node);
ctx.statusSignals.set(key, status);
ctx.preconditions.set(key, node.preconditions);
ctx.blockedByFailure.set(key, node.blockedByFailure);
if (parent) {
ctx.parentMap.set(key, parent.key);
const siblings = ctx.siblingMap.get(parent.key);
if (siblings) {
siblings.push(key);
} else {
ctx.siblingMap.set(parent.key, [key]);
}
}
return node;
}
const counter = ctx._containerCounter++;
const key = `__${tag}_${counter}`;
const status = signal<NodeStatus>("idle");
const node: WorkflowNode = {
key,
type: tag,
status,
preconditions: computed(() => computePreconditions(node, ctx)),
blockedByFailure: computed(() => computeBlockedByFailure(node, ctx)),
children: [],
};
ctx.nodes.set(key, node);
ctx.statusSignals.set(key, status);
ctx.preconditions.set(key, node.preconditions);
ctx.blockedByFailure.set(key, node.blockedByFailure);
if (parent) {
ctx.parentMap.set(key, parent.key);
const siblings = ctx.siblingMap.get(parent.key);
if (siblings) {
siblings.push(key);
} else {
ctx.siblingMap.set(parent.key, [key]);
}
}
if (!ctx.siblingMap.has(key)) {
ctx.siblingMap.set(key, []);
}
return node;
},
createTextInstance(_text, ctx, _parent) {
const counter = ctx._containerCounter++;
const key = `__text_${counter}`;
const status = signal<NodeStatus>("idle");
const node: WorkflowNode = {
key,
type: "sequential" as WorkflowTag,
status,
preconditions: computed(() => true),
blockedByFailure: computed(() => false),
children: [],
};
ctx.nodes.set(key, node);
ctx.statusSignals.set(key, status);
return node;
},
appendChild(parent, child, _ctx) {
if (!parent.children.includes(child)) {
parent.children.push(child);
}
},
insertBefore(parent, child, before, _ctx) {
const idx = parent.children.indexOf(before);
if (idx === -1) {
parent.children.push(child);
} else {
if (!parent.children.includes(child)) {
parent.children.splice(idx, 0, child);
}
}
},
removeChild(parent, child, ctx) {
parent.children = parent.children.filter((c) => c.key !== child.key);
const siblings = ctx.siblingMap.get(parent.key);
if (siblings) {
const idx = siblings.indexOf(child.key);
if (idx !== -1) {
siblings.splice(idx, 1);
}
}
},
prepareUpdate() {
return null;
},
commitUpdate() {
},
emit() {
},
finalizeInstance(_instance, _ctx) {
},
};

View File

@@ -1,9 +1,7 @@
export * from "./error/index.js";
export { FlowGraph, buildTypeEdges, type FlowGraphOptions, type OperationSpec, type CallEventMapValue, type CallRequestedEvent, type CallRespondedEvent, type CallErrorEvent, type CallAbortedEvent, type CallCompletedEvent } from "./graph/index.js";
export { typeCompat, type TypeCompatResult, type TypeMismatch } from "./analysis/type-compat.js";
export {
validateSchema,
validateGraph,
validate,
} from "./graph/validation.js";
export * from "./schema/index.js";
export * from "./component/index.js";
export * from "./host/index.js";
export * from "./reactive/index.js";
export * from "./analysis/index.js";
export * from "./graph/index.js";

View File

@@ -1,16 +1,17 @@
export {
WorkflowReactiveRoot,
type FailurePolicy,
type CallEventMapValue,
type CallRequestedEvent,
type CallRespondedEvent,
type CallErrorEvent,
type CallAbortedEvent,
type CallCompletedEvent,
type EventLogProjection,
type AggregateStatus,
type ParallelGroup,
type ParallelGroupConfig,
} from "./workflow.js";
export type {
WorkflowNode,
ReactiveContext,
} from "../host/reactive.js";
export {
computePreconditions,
computeBlockedByFailure,

View File

@@ -39,11 +39,11 @@ export function computeBlockedByFailure(
export function registerStartEffect(
status: Signal<NodeStatus>,
preconditions: ReadonlySignal<boolean>,
canStart: ReadonlySignal<boolean>,
effectDisposers: (() => void)[],
): void {
const disposer = effect(() => {
if (preconditions.value) {
if (canStart.value) {
const current = status.value;
if (current === "idle" || current === "waiting") {
status.value = "ready";

View File

@@ -3,6 +3,8 @@ import type { Signal, ReadonlySignal } from "@preact/signals-core";
import type { DirectedGraph } from "graphology";
import type { NodeStatus } from "../schema/enums.js";
import type { CallResult } from "../schema/edge.js";
import type { CallEventMapValue } from "../graph/construction.js";
export type { CallEventMapValue } from "../graph/construction.js";
import {
computePreconditions,
computeBlockedByFailure,
@@ -13,48 +15,15 @@ import type { NodeStatusContext } from "./node-status.js";
export type FailurePolicy = "continue-running" | "abort-dependents";
export interface CallRequestedEvent {
type: "call.requested";
requestId: string;
operationId: string;
input: unknown;
timestamp: string;
export interface ParallelGroup {
siblings: string[];
maxConcurrency?: number;
}
export interface CallRespondedEvent {
type: "call.responded";
requestId: string;
output: unknown;
timestamp: string;
export interface ParallelGroupConfig {
[groupKey: string]: ParallelGroup;
}
export interface CallErrorEvent {
type: "call.error";
requestId: string;
error: { code: string; message: string; details?: unknown };
timestamp: string;
}
export interface CallAbortedEvent {
type: "call.aborted";
requestId: string;
timestamp: string;
}
export interface CallCompletedEvent {
type: "call.completed";
requestId: string;
output: unknown;
timestamp: string;
}
export type CallEventMapValue =
| CallRequestedEvent
| CallRespondedEvent
| CallErrorEvent
| CallAbortedEvent
| CallCompletedEvent;
export interface EventLogProjection {
append(event: CallEventMapValue): void;
getStatus(nodeId: string): NodeStatus;
@@ -92,6 +61,7 @@ const EVENT_TO_STATUS: Record<string, NodeStatus> = {
export class WorkflowReactiveRoot implements EventLogProjection {
statusMap: Map<string, Signal<NodeStatus>>;
preconditions: Map<string, ReadonlySignal<boolean>>;
canStart: Map<string, ReadonlySignal<boolean>>;
blockedByFailure: Map<string, ReadonlySignal<boolean>>;
resultMap: Map<string, ReadonlySignal<CallResult | undefined>>;
nodeKeyToRequestId: Map<string, string>;
@@ -101,14 +71,16 @@ export class WorkflowReactiveRoot implements EventLogProjection {
private effectDisposers: (() => void)[];
private eventLog: CallEventMapValue[];
private _failurePolicy: FailurePolicy;
private _parallelGroups: ParallelGroupConfig;
constructor(
graph: DirectedGraph,
options?: { failurePolicy?: FailurePolicy },
options?: { failurePolicy?: FailurePolicy; parallelGroups?: ParallelGroupConfig },
) {
this.graph = graph;
this.statusMap = new Map();
this.preconditions = new Map();
this.canStart = new Map();
this.blockedByFailure = new Map();
this.resultMap = new Map();
this.effectDisposers = [];
@@ -116,6 +88,7 @@ export class WorkflowReactiveRoot implements EventLogProjection {
this.nodeKeyToRequestId = new Map();
this.requestIdToNodeKey = new Map();
this._failurePolicy = options?.failurePolicy ?? "continue-running";
this._parallelGroups = options?.parallelGroups ?? {};
this.initializeSignals();
}
@@ -125,6 +98,13 @@ export class WorkflowReactiveRoot implements EventLogProjection {
}
private initializeSignals(): void {
const nodeToGroupKey = new Map<string, string>();
for (const [groupKey, group] of Object.entries(this._parallelGroups)) {
for (const sibling of group.siblings) {
nodeToGroupKey.set(sibling, groupKey);
}
}
for (const node of this.graph.nodes()) {
const predecessors: string[] = this.graph.inNeighbors(node) ?? [];
@@ -139,6 +119,26 @@ export class WorkflowReactiveRoot implements EventLogProjection {
return computePreconditions(node, ctx);
});
const groupKey = nodeToGroupKey.get(node);
const parallelGroup = groupKey ? this._parallelGroups[groupKey] : undefined;
const maxConc = parallelGroup?.maxConcurrency;
const siblings = parallelGroup?.siblings ?? [];
let canStartComputed: ReadonlySignal<boolean>;
if (maxConc !== undefined && siblings.length > 0) {
const otherSiblings = siblings.filter((s) => s !== node);
canStartComputed = computed(() => {
if (!preconditionsComputed.value) return false;
const activeSiblingCount = otherSiblings.filter((sib) => {
const sibStatus = this.statusMap.get(sib);
return sibStatus && (sibStatus.value === "running" || sibStatus.value === "ready");
}).length;
return activeSiblingCount < maxConc;
});
} else {
canStartComputed = preconditionsComputed;
}
const blockedByFailureComputed = computed(() => {
return computeBlockedByFailure(node, ctx);
});
@@ -189,16 +189,17 @@ export class WorkflowReactiveRoot implements EventLogProjection {
this.statusMap.set(node, status);
this.preconditions.set(node, preconditionsComputed);
this.canStart.set(node, canStartComputed);
this.blockedByFailure.set(node, blockedByFailureComputed);
this.resultMap.set(node, resultComputed);
}
for (const node of this.graph.nodes()) {
const status = this.statusMap.get(node)!;
const preconditions = this.preconditions.get(node)!;
const canStart = this.canStart.get(node)!;
const blocked = this.blockedByFailure.get(node)!;
registerStartEffect(status, preconditions, this.effectDisposers);
registerStartEffect(status, canStart, this.effectDisposers);
registerAbortEffect(status, blocked, this.effectDisposers, {
abortDependents: this._failurePolicy === "abort-dependents",
});
@@ -338,6 +339,7 @@ export class WorkflowReactiveRoot implements EventLogProjection {
this.effectDisposers = [];
this.statusMap.clear();
this.preconditions.clear();
this.canStart.clear();
this.blockedByFailure.clear();
this.resultMap.clear();
this.nodeKeyToRequestId.clear();

View File

@@ -1,7 +1,7 @@
---
id: api/public-exports
name: Wire barrel exports and verify exports map resolves correctly for all sub-paths
status: pending
status: completed
depends_on:
- review/reactive-and-hosts
- analysis/type-compat

View File

@@ -1,7 +1,7 @@
---
id: host/reactive
name: Implement ReactiveHostConfig — render ujsx template to reactive execution engine
status: pending
status: completed
depends_on:
- component/operation
- component/sequential

View File

@@ -1,7 +1,7 @@
---
id: meta/analysis-layer
name: Complete analysis layer — type compatibility, ordering, template/graph validation, defaults
status: pending
status: completed
depends_on:
- analysis/type-compat
- analysis/build-type-edges

View File

@@ -1,7 +1,7 @@
---
id: meta/graph-layer
name: Complete graph layer — FlowGraph class, all construction paths, queries, validation
status: pending
status: completed
depends_on:
- graph/flowgraph-class
- graph/construction-operation

View File

@@ -1,7 +1,7 @@
---
id: meta/reactive-layer
name: Complete reactive execution layer — WorkflowRoot, node-status, maxConcurrency, retries
status: pending
status: completed
depends_on:
- reactive/workflow-root
- reactive/node-status
@@ -19,11 +19,11 @@ Meta task that clusters all reactive execution tasks. Once complete, the reactiv
## Acceptance Criteria
- [ ] All reactive tasks completed
- [ ] WorkflowReactiveRoot implements EventLogProjection correctly
- [ ] Preconditions drive automatic state transitions
- [ ] Failure follows dependency edges, not structural scope
- [ ] dispose() prevents signal leaks
- [x] All reactive tasks completed
- [x] WorkflowReactiveRoot implements EventLogProjection correctly
- [x] Preconditions drive automatic state transitions
- [x] Failure follows dependency edges, not structural scope
- [x] dispose() prevents signal leaks
## References
@@ -31,8 +31,8 @@ Meta task that clusters all reactive execution tasks. Once complete, the reactiv
## Notes
> To be filled by implementation agent
All four dependent tasks (reactive/workflow-root, reactive/node-status, reactive/max-concurrency, reactive/retry-semantics) were already completed. This meta-task verifies the integrated reactive execution layer works correctly end-to-end.
## Summary
> To be filled on completion
Verified the complete reactive execution layer: WorkflowReactiveRoot implements EventLogProjection correctly with signal-backed status, computed preconditions drive automatic state transitions, failure propagation follows dependency edges (not structural scope), maxConcurrency semaphore works for Parallel groups, retry semantics preserve full event history, and dispose() prevents signal leaks. All 665 tests pass (129 reactive-specific).

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@@ -1,7 +1,7 @@
---
id: review/reactive-and-hosts
name: Review reactive execution and host configs — signal graph, preconditions, HostConfig implementations
status: pending
status: completed
depends_on:
- reactive/workflow-root
- reactive/node-status

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@@ -1,7 +1,7 @@
---
id: reactive/max-concurrency
name: Implement maxConcurrency semaphore for Parallel groups
status: pending
status: completed
depends_on:
- reactive/node-status
- component/parallel

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@@ -1,7 +1,7 @@
---
id: reactive/node-status
name: Implement node status signal management and computed preconditions + blockedByFailure
status: pending
status: completed
depends_on:
- reactive/workflow-root
- schema/enums

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@@ -1,7 +1,7 @@
---
id: reactive/retry-semantics
name: Implement retry semantics — event log append with new requestId, status projection respects retries
status: pending
status: completed
depends_on:
- reactive/workflow-root
scope: narrow

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@@ -1,7 +1,7 @@
---
id: review/complete-library
name: Final review — validate full library against architecture docs, build, and exports
status: pending
status: completed
depends_on:
- api/public-exports
- review/foundation

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@@ -1,7 +1,7 @@
---
id: review/foundation
name: Review foundation layer — schemas, errors, FlowGraph class, construction
status: pending
status: completed
depends_on:
- schema/enums
- schema/node-attrs

77
test/exports.test.ts Normal file
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@@ -0,0 +1,77 @@
import { describe, it, expect } from "vitest";
import { FlowGraph, typeCompat, CycleError, OperationNodeAttrs, Operation, GraphologyHostConfig, WorkflowReactiveRoot, topologicalOrder } from "../src/index.js";
import { buildTypeEdges as buildTypeEdgesGraph } from "../src/graph/index.js";
import { CallStatusEnum, NodeStatusEnum, EdgeTypeEnum, CallResultSchema, OperationEdgeAttrs, CallEdgeAttrs, TemplateEdgeAttrs, CallNodeAttrs } from "../src/schema/index.js";
import { Sequential, Parallel, Conditional, Map } from "../src/component/index.js";
import { ReactiveHostConfig } from "../src/host/index.js";
import { WorkflowReactiveRoot as ReactiveRootFromReactive, computePreconditions, computeBlockedByFailure } from "../src/reactive/index.js";
import { typeCompat as typeCompatAnalysis, buildTypeEdges, validateGraph, validateTemplate, topologicalOrder as topologicalOrderAnalysis, parallelGroups, criticalPath, reachableFrom } from "../src/analysis/index.js";
import { FlowgraphError, ConstructionError, CycleError as CycleErrorFromError, InvalidTransitionError } from "../src/error/index.js";
describe("Sub-path imports", () => {
it("@alkdev/flowgraph → all public types", () => {
expect(FlowGraph).toBeDefined();
expect(typeCompat).toBeDefined();
expect(CycleError).toBeDefined();
expect(OperationNodeAttrs).toBeDefined();
expect(Operation).toBeDefined();
expect(GraphologyHostConfig).toBeDefined();
expect(WorkflowReactiveRoot).toBeDefined();
expect(topologicalOrder).toBeDefined();
});
it("@alkdev/flowgraph/graph → FlowGraph, FlowGraphOptions", () => {
expect(FlowGraph).toBeDefined();
expect(buildTypeEdgesGraph).toBeDefined();
});
it("@alkdev/flowgraph/schema → all schemas, enums, types, CallResult", () => {
expect(OperationNodeAttrs).toBeDefined();
expect(CallNodeAttrs).toBeDefined();
expect(OperationEdgeAttrs).toBeDefined();
expect(CallEdgeAttrs).toBeDefined();
expect(TemplateEdgeAttrs).toBeDefined();
expect(CallResultSchema).toBeDefined();
expect(CallStatusEnum).toBeDefined();
expect(NodeStatusEnum).toBeDefined();
expect(EdgeTypeEnum).toBeDefined();
});
it("@alkdev/flowgraph/component → Operation, Sequential, Parallel, Conditional, Map", () => {
expect(Operation).toBeDefined();
expect(Sequential).toBeDefined();
expect(Parallel).toBeDefined();
expect(Conditional).toBeDefined();
expect(Map).toBeDefined();
});
it("@alkdev/flowgraph/host → GraphologyHostConfig, ReactiveHostConfig", () => {
expect(GraphologyHostConfig).toBeDefined();
expect(ReactiveHostConfig).toBeDefined();
});
it("@alkdev/flowgraph/reactive → WorkflowReactiveRoot, EventLogProjection", () => {
expect(ReactiveRootFromReactive).toBeDefined();
expect(computePreconditions).toBeDefined();
expect(computeBlockedByFailure).toBeDefined();
});
it("@alkdev/flowgraph/analysis → typeCompat, buildTypeEdges, validateGraph, validateTemplate, topologicalOrder, parallelGroups, criticalPath, reachableFrom", () => {
expect(typeCompatAnalysis).toBeDefined();
expect(buildTypeEdges).toBeDefined();
expect(validateGraph).toBeDefined();
expect(validateTemplate).toBeDefined();
expect(topologicalOrderAnalysis).toBeDefined();
expect(parallelGroups).toBeDefined();
expect(criticalPath).toBeDefined();
expect(reachableFrom).toBeDefined();
});
it("@alkdev/flowgraph/error → all error classes", () => {
expect(FlowgraphError).toBeDefined();
expect(ConstructionError).toBeDefined();
expect(CycleErrorFromError).toBeDefined();
expect(InvalidTransitionError).toBeDefined();
});
});

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@@ -9,7 +9,7 @@ import {
CycleError,
InvalidTransitionError,
} from "../../src/error/index.js";
import type { CallStatus } from "../../src/error/index.js";
import type { CallStatus } from "../../src/schema/enums.js";
describe("FlowGraph constructor", () => {
it("creates an empty graph", () => {

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@@ -1,7 +1,507 @@
import { describe, it, expect } from 'vitest';
import { describe, it, expect } from "vitest";
import { h, createHostRoot } from "@alkdev/ujsx";
import { Operation, Sequential, Parallel, Conditional, Map } from "../../src/component/index.js";
import { ReactiveHostConfig } from "../../src/host/reactive.js";
import type { WorkflowNode, ReactiveContext } from "../../src/host/reactive.js";
describe('reactive host', () => {
it('placeholder', () => {
expect(true).toBe(true);
function renderTemplate(template: ReturnType<typeof h>): ReactiveContext {
const root = createHostRoot(ReactiveHostConfig, null);
root.render(template);
return root.ctx;
}
describe("ReactiveHostConfig", () => {
describe("createRootContext", () => {
it("creates fresh ReactiveContext with empty maps", () => {
const ctx = ReactiveHostConfig.createRootContext(null);
expect(ctx.nodes.size).toBe(0);
expect(ctx.statusSignals.size).toBe(0);
expect(ctx.parentMap.size).toBe(0);
expect(ctx.siblingMap.size).toBe(0);
});
it("accepts options with registry", () => {
const registry = { resolve: (name: string) => name };
const ctx = ReactiveHostConfig.createRootContext(null, { registry });
expect(ctx.operationRegistry).toBe(registry);
});
});
describe("createInstance for operation", () => {
it("creates WorkflowNode with correct key and type", () => {
const template = h(Sequential, {},
h(Operation, { name: "classify" }),
);
const ctx = renderTemplate(template);
const node = ctx.nodes.get("classify");
expect(node).toBeDefined();
expect(node!.key).toBe("classify");
expect(node!.type).toBe("operation");
expect(node!.operationId).toBe("classify");
});
it("creates WorkflowNode with idle status signal", () => {
const template = h(Sequential, {},
h(Operation, { name: "classify" }),
);
const ctx = renderTemplate(template);
const node = ctx.nodes.get("classify")!;
expect(node.status.value).toBe("idle");
});
it("registers node in context maps", () => {
const template = h(Sequential, {},
h(Operation, { name: "classify" }),
);
const ctx = renderTemplate(template);
expect(ctx.statusSignals.has("classify")).toBe(true);
expect(ctx.preconditions.has("classify")).toBe(true);
expect(ctx.blockedByFailure.has("classify")).toBe(true);
});
it("creates output signal for operation nodes", () => {
const template = h(Sequential, {},
h(Operation, { name: "classify" }),
);
const ctx = renderTemplate(template);
const node = ctx.nodes.get("classify")!;
expect(node.output).toBeDefined();
expect(node.output!.value).toBeUndefined();
});
});
describe("createInstance for structural containers", () => {
it("creates WorkflowNode tracking children for Sequential", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0");
expect(seqNode).toBeDefined();
expect(seqNode!.type).toBe("sequential");
expect(seqNode!.children.length).toBe(2);
});
it("creates WorkflowNode for Parallel with children", () => {
const template = h(Parallel, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const parNode = ctx.nodes.get("__parallel_0");
expect(parNode).toBeDefined();
expect(parNode!.type).toBe("parallel");
expect(parNode!.children.length).toBe(2);
});
it("creates WorkflowNode for Conditional with children", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Conditional, { test: "A" },
h(Operation, { name: "B" }),
),
);
const ctx = renderTemplate(template);
const condNode = ctx.nodes.get("__conditional_1");
expect(condNode).toBeDefined();
expect(condNode!.type).toBe("conditional");
});
it("structural containers do not have operationId", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0")!;
expect(seqNode.operationId).toBeUndefined();
});
});
describe("signal initial states", () => {
it("root operation has preconditions met (no predecessors)", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const nodeA = ctx.nodes.get("A")!;
expect(nodeA.preconditions.value).toBe(true);
});
it("second operation in sequential has unmet preconditions", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const nodeB = ctx.nodes.get("B")!;
expect(nodeB.preconditions.value).toBe(false);
});
it("parallel children have preconditions met (no inter-child deps)", () => {
const template = h(Parallel, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("A")!.preconditions.value).toBe(true);
expect(ctx.nodes.get("B")!.preconditions.value).toBe(true);
});
it("all initial blockedByFailure are false", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("A")!.blockedByFailure.value).toBe(false);
expect(ctx.nodes.get("B")!.blockedByFailure.value).toBe(false);
});
});
describe("precondition transition on predecessor completion", () => {
it("sequential: completing predecessor updates dependent preconditions", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const nodeA = ctx.nodes.get("A")!;
const nodeB = ctx.nodes.get("B")!;
expect(nodeB.preconditions.value).toBe(false);
nodeA.status.value = "completed";
expect(nodeB.preconditions.value).toBe(true);
});
it("sequential: skipped predecessor satisfies preconditions", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const nodeA = ctx.nodes.get("A")!;
nodeA.status.value = "skipped";
expect(ctx.nodes.get("B")!.preconditions.value).toBe(true);
});
it("sequential chain: A→B→C, completing A then B", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
h(Operation, { name: "C" }),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("B")!.preconditions.value).toBe(false);
expect(ctx.nodes.get("C")!.preconditions.value).toBe(false);
ctx.nodes.get("A")!.status.value = "completed";
expect(ctx.nodes.get("B")!.preconditions.value).toBe(true);
expect(ctx.nodes.get("C")!.preconditions.value).toBe(false);
ctx.nodes.get("B")!.status.value = "completed";
expect(ctx.nodes.get("C")!.preconditions.value).toBe(true);
});
it("parallel children preconditions independent of each other", () => {
const template = h(Sequential, {},
h(Operation, { name: "pre" }),
h(Parallel, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("A")!.preconditions.value).toBe(false);
expect(ctx.nodes.get("B")!.preconditions.value).toBe(false);
ctx.nodes.get("pre")!.status.value = "completed";
expect(ctx.nodes.get("A")!.preconditions.value).toBe(true);
expect(ctx.nodes.get("B")!.preconditions.value).toBe(true);
});
});
describe("failure propagation", () => {
it("sequential: failed predecessor causes blockedByFailure to be true", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
ctx.nodes.get("A")!.status.value = "failed";
expect(ctx.nodes.get("B")!.blockedByFailure.value).toBe(true);
});
it("sequential: aborted predecessor causes blockedByFailure to be true", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
ctx.nodes.get("A")!.status.value = "aborted";
expect(ctx.nodes.get("B")!.blockedByFailure.value).toBe(true);
});
it("parallel siblings are independent for failure propagation", () => {
const template = h(Parallel, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
ctx.nodes.get("A")!.status.value = "failed";
expect(ctx.nodes.get("B")!.blockedByFailure.value).toBe(false);
});
it("failed predecessor does not satisfy preconditions", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
ctx.nodes.get("A")!.status.value = "failed";
expect(ctx.nodes.get("B")!.preconditions.value).toBe(false);
});
});
describe("appendChild", () => {
it("appends children to parent's children array", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0")!;
expect(seqNode.children.length).toBe(2);
expect(seqNode.children[0]!.key).toBe("A");
expect(seqNode.children[1]!.key).toBe("B");
});
it("does not duplicate children", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0")!;
const childNode = ctx.nodes.get("A")!;
ReactiveHostConfig.appendChild(seqNode, childNode, ctx);
expect(seqNode.children.length).toBe(1);
});
});
describe("removeChild", () => {
it("removes child from parent's children array", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0")!;
const childB = ctx.nodes.get("B")!;
ReactiveHostConfig.removeChild(seqNode, childB, ctx);
expect(seqNode.children.length).toBe(1);
expect(seqNode.children[0]!.key).toBe("A");
});
it("preconditions auto-reevaluate after removeChild", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
h(Operation, { name: "C" }),
);
const ctx = renderTemplate(template);
const seqNode = ctx.nodes.get("__sequential_0")!;
const childB = ctx.nodes.get("B")!;
ctx.nodes.get("A")!.status.value = "completed";
expect(childB.preconditions.value).toBe(true);
ReactiveHostConfig.removeChild(seqNode, childB, ctx);
const childC = ctx.nodes.get("C")!;
expect(childC.preconditions.value).toBe(true);
});
});
describe("parentMap and siblingMap", () => {
it("registers parent-child relationships in parentMap", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
expect(ctx.parentMap.get("A")).toBe("__sequential_0");
expect(ctx.parentMap.get("B")).toBe("__sequential_0");
});
it("registers siblings in siblingMap", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
const siblings = ctx.siblingMap.get("__sequential_0");
expect(siblings).toEqual(["A", "B"]);
});
it("nested structures register correct parent", () => {
const template = h(Sequential, {},
h(Operation, { name: "pre" }),
h(Parallel, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
),
);
const ctx = renderTemplate(template);
expect(ctx.parentMap.get("pre")).toBe("__sequential_0");
expect(ctx.parentMap.get("A")).toBe("__parallel_1");
expect(ctx.parentMap.get("B")).toBe("__parallel_1");
const seqSiblings = ctx.siblingMap.get("__sequential_0");
expect(seqSiblings).toEqual(["pre", "__parallel_1"]);
const parSiblings = ctx.siblingMap.get("__parallel_1");
expect(parSiblings).toEqual(["A", "B"]);
});
});
describe("Conditional as error boundary", () => {
it("conditional node is created with correct type", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
h(Conditional, { test: "A" },
h(Operation, { name: "B" }),
),
);
const ctx = renderTemplate(template);
const condNode = ctx.nodes.get("__conditional_1");
expect(condNode).toBeDefined();
expect(condNode!.type).toBe("conditional");
});
it("conditional child has preconditions met (no inter-child ordering)", () => {
const template = h(Conditional, { test: "A" },
h(Operation, { name: "B" }),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("B")!.preconditions.value).toBe(true);
});
});
describe("full template rendering", () => {
it("renders a complete pipeline template", () => {
const template = h(Sequential, {},
h(Operation, { name: "architect" }),
h(Operation, { name: "reviewer" }),
h(Parallel, {},
h(Operation, { name: "decomposer" }),
h(Operation, { name: "specialist" }),
),
h(Operation, { name: "synthesizer" }),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.get("architect")).toBeDefined();
expect(ctx.nodes.get("reviewer")).toBeDefined();
expect(ctx.nodes.get("decomposer")).toBeDefined();
expect(ctx.nodes.get("specialist")).toBeDefined();
expect(ctx.nodes.get("synthesizer")).toBeDefined();
expect(ctx.nodes.get("architect")!.preconditions.value).toBe(true);
expect(ctx.nodes.get("reviewer")!.preconditions.value).toBe(false);
ctx.nodes.get("architect")!.status.value = "completed";
expect(ctx.nodes.get("reviewer")!.preconditions.value).toBe(true);
});
it("deeply nested template registers all nodes", () => {
const template = h(Sequential, {},
h(Parallel, {},
h(Sequential, {},
h(Operation, { name: "A" }),
h(Operation, { name: "B" }),
),
h(Operation, { name: "C" }),
),
);
const ctx = renderTemplate(template);
expect(ctx.nodes.has("A")).toBe(true);
expect(ctx.nodes.has("B")).toBe(true);
expect(ctx.nodes.has("C")).toBe(true);
});
});
describe("shared signal references", () => {
it("WorkflowNode.status and statusSignals point to same signal", () => {
const template = h(Sequential, {},
h(Operation, { name: "A" }),
);
const ctx = renderTemplate(template);
const node = ctx.nodes.get("A")!;
const statusFromMap = ctx.statusSignals.get("A")!;
expect(node.status).toBe(statusFromMap);
statusFromMap.value = "running";
expect(node.status.value).toBe("running");
node.status.value = "completed";
expect(statusFromMap.value).toBe("completed");
});
});
});

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@@ -0,0 +1,482 @@
import { describe, it, expect } from "vitest";
import { DirectedGraph } from "graphology";
import { WorkflowReactiveRoot } from "../../src/reactive/workflow.js";
import type { ParallelGroupConfig } from "../../src/reactive/workflow.js";
function makeParallelGroupGraph(): DirectedGraph {
const graph = new DirectedGraph();
graph.addNode("entry", { name: "entry" });
graph.addNode("a", { name: "a" });
graph.addNode("b", { name: "b" });
graph.addNode("c", { name: "c" });
graph.addNode("d", { name: "d" });
graph.addEdgeWithKey("entry->a", "entry", "a", { edgeType: "sequential" });
graph.addEdgeWithKey("entry->b", "entry", "b", { edgeType: "sequential" });
graph.addEdgeWithKey("entry->c", "entry", "c", { edgeType: "sequential" });
graph.addEdgeWithKey("entry->d", "entry", "d", { edgeType: "sequential" });
return graph;
}
function makeParallelGroupNoEntry(): DirectedGraph {
const graph = new DirectedGraph();
graph.addNode("a", { name: "a" });
graph.addNode("b", { name: "b" });
graph.addNode("c", { name: "c" });
return graph;
}
describe("maxConcurrency semaphore", () => {
describe("parallel group with maxConcurrency: 2", () => {
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
it("limits running siblings to maxConcurrency", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
expect(root.canStart.has("a")).toBe(true);
expect(root.canStart.has("b")).toBe(true);
expect(root.canStart.has("c")).toBe(true);
expect(root.canStart.has("d")).toBe(true);
expect(root.statusMap.get("entry")!.value).toBe("ready");
root.statusMap.get("entry")!.value = "completed";
expect(root.preconditions.get("a")!.value).toBe(true);
expect(root.preconditions.get("b")!.value).toBe(true);
expect(root.preconditions.get("c")!.value).toBe(true);
expect(root.preconditions.get("d")!.value).toBe(true);
expect(root.canStart.get("a")!.value).toBe(true);
expect(root.canStart.get("b")!.value).toBe(true);
root.dispose();
});
it("canStart becomes false when maxConcurrency siblings are running", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("a")!.value).toBe(true);
expect(root.canStart.get("b")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(false);
expect(root.canStart.get("d")!.value).toBe(false);
root.dispose();
});
it("blocked nodes by semaphore stay idle (not ready)", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.statusMap.get("c")!.value).toBe("idle");
expect(root.statusMap.get("d")!.value).toBe("idle");
root.dispose();
});
it("slot opens when a running sibling completes", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("c")!.value).toBe(false);
root.statusMap.get("a")!.value = "completed";
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.canStart.get("d")!.value).toBe(false);
expect(root.statusMap.get("c")!.value).toBe("ready");
root.dispose();
});
it("all slots eventually open as siblings complete", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
root.statusMap.get("a")!.value = "completed";
expect(root.canStart.get("c")!.value).toBe(true);
root.statusMap.get("b")!.value = "completed";
expect(root.canStart.get("d")!.value).toBe(true);
root.dispose();
});
it("canStart correctly limits when sibling transitions to ready", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "ready";
root.statusMap.get("b")!.value = "ready";
expect(root.canStart.get("c")!.value).toBe(false);
expect(root.canStart.get("d")!.value).toBe(false);
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("c")!.value).toBe(false);
expect(root.canStart.get("d")!.value).toBe(false);
root.dispose();
});
});
describe("parallel group without maxConcurrency", () => {
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
},
};
it("all siblings start immediately when preconditions are met", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
expect(root.canStart.get("a")!.value).toBe(true);
expect(root.canStart.get("b")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.canStart.get("d")!.value).toBe(true);
expect(root.statusMap.get("a")!.value).toBe("ready");
expect(root.statusMap.get("b")!.value).toBe("ready");
expect(root.statusMap.get("c")!.value).toBe("ready");
expect(root.statusMap.get("d")!.value).toBe("ready");
root.dispose();
});
it("no semaphore — running siblings do not block others", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.canStart.get("d")!.value).toBe(true);
root.dispose();
});
});
describe("no parallelGroups config", () => {
it("all nodes start normally without semaphore", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph);
root.statusMap.get("entry")!.value = "completed";
expect(root.canStart.get("a")!.value).toBe(true);
expect(root.canStart.get("b")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.canStart.get("d")!.value).toBe(true);
expect(root.statusMap.get("a")!.value).toBe("ready");
expect(root.statusMap.get("b")!.value).toBe("ready");
expect(root.statusMap.get("c")!.value).toBe("ready");
expect(root.statusMap.get("d")!.value).toBe("ready");
root.dispose();
});
});
describe("maxConcurrency: 1 (serial within parallel)", () => {
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c"],
maxConcurrency: 1,
},
};
it("only one sibling can run at a time", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
const canStartA = root.canStart.get("a")!;
const canStartB = root.canStart.get("b")!;
const canStartC = root.canStart.get("c")!;
expect(canStartA.value).toBe(true);
expect(canStartB.value).toBe(false);
expect(canStartC.value).toBe(false);
root.statusMap.get("a")!.value = "running";
expect(canStartA.value).toBe(true);
expect(canStartB.value).toBe(false);
expect(canStartC.value).toBe(false);
root.dispose();
});
it("next sibling can start when current finishes", () => {
const graph = makeParallelGroupGraph();
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("a")!.value = "completed";
expect(root.canStart.get("b")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(false);
root.dispose();
});
});
describe("root-level parallel group with maxConcurrency", () => {
it("limits concurrent start for root nodes with no predecessors", () => {
const graph = makeParallelGroupNoEntry();
const parallelGroups: ParallelGroupConfig = {
root: {
siblings: ["a", "b", "c"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
expect(root.canStart.get("a")!.value).toBe(true);
expect(root.canStart.get("b")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(false);
root.dispose();
});
it("third node becomes ready when a slot opens", () => {
const graph = makeParallelGroupNoEntry();
const parallelGroups: ParallelGroupConfig = {
root: {
siblings: ["a", "b", "c"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("c")!.value).toBe(false);
expect(root.statusMap.get("c")!.value).toBe("idle");
root.statusMap.get("a")!.value = "completed";
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.statusMap.get("c")!.value).toBe("ready");
root.dispose();
});
});
describe("preconditions vs canStart", () => {
it("canStart is false when preconditions are not met even if semaphore has slots", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
expect(root.preconditions.get("a")!.value).toBe(false);
expect(root.canStart.get("a")!.value).toBe(false);
root.dispose();
});
it("canStart requires both preconditions AND semaphore slot", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
expect(root.preconditions.get("a")!.value).toBe(true);
expect(root.canStart.get("a")!.value).toBe(true);
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.preconditions.get("c")!.value).toBe(true);
expect(root.canStart.get("c")!.value).toBe(false);
root.dispose();
});
});
describe("failed sibling does not count as running", () => {
it("failed sibling frees a slot for semaphore", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.canStart.get("c")!.value).toBe(false);
root.statusMap.get("b")!.value = "failed";
expect(root.canStart.get("c")!.value).toBe(true);
root.dispose();
});
it("completed sibling frees a slot for semaphore", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
root.statusMap.get("b")!.value = "completed";
expect(root.canStart.get("c")!.value).toBe(true);
expect(root.canStart.get("d")!.value).toBe(false);
root.dispose();
});
it("aborted sibling frees a slot for semaphore", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.statusMap.get("entry")!.value = "completed";
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
root.statusMap.get("b")!.value = "aborted";
expect(root.canStart.get("c")!.value).toBe(true);
root.dispose();
});
});
describe("dispose clears canStart", () => {
it("canStart map is cleared on dispose", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
expect(root.canStart.size).toBe(5);
root.dispose();
expect(root.canStart.size).toBe(0);
});
});
describe("full execution flow with maxConcurrency", () => {
it("simulates parallel execution with maxConcurrency: 2 — only 2 run at a time", () => {
const graph = makeParallelGroupGraph();
const parallelGroups: ParallelGroupConfig = {
group1: {
siblings: ["a", "b", "c", "d"],
maxConcurrency: 2,
},
};
const root = new WorkflowReactiveRoot(graph, { parallelGroups });
root.setRequestId("entry", "req-entry");
root.setRequestId("a", "req-a");
root.setRequestId("b", "req-b");
root.setRequestId("c", "req-c");
root.setRequestId("d", "req-d");
root.statusMap.get("entry")!.value = "completed";
expect(root.statusMap.get("a")!.value).toBe("ready");
expect(root.statusMap.get("b")!.value).toBe("ready");
expect(root.statusMap.get("c")!.value).toBe("idle");
expect(root.statusMap.get("d")!.value).toBe("idle");
root.statusMap.get("a")!.value = "running";
root.statusMap.get("b")!.value = "running";
expect(root.statusMap.get("c")!.value).toBe("idle");
expect(root.statusMap.get("d")!.value).toBe("idle");
root.statusMap.get("a")!.value = "completed";
expect(root.statusMap.get("c")!.value).toBe("ready");
expect(root.statusMap.get("d")!.value).toBe("idle");
root.statusMap.get("c")!.value = "running";
root.statusMap.get("b")!.value = "completed";
expect(root.statusMap.get("d")!.value).toBe("ready");
root.statusMap.get("d")!.value = "running";
root.statusMap.get("c")!.value = "completed";
root.statusMap.get("d")!.value = "completed";
expect(root.isComplete()).toBe(true);
root.dispose();
});
});
});

View File

@@ -528,6 +528,219 @@ describe("WorkflowReactiveRoot", () => {
});
});
describe("retry semantics", () => {
it("nodeKeyToRequestId overwrites previous requestId — projection tracks latest attempt", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
expect(root.nodeKeyToRequestId.get("a")).toBe("req-1");
root.setRequestId("a", "req-2");
expect(root.nodeKeyToRequestId.get("a")).toBe("req-2");
expect(root.requestIdToNodeKey.get("req-2")).toBe("a");
root.dispose();
});
it("retry sequence: error then requested then responded → status is completed", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.append({
type: "call.requested",
requestId: "req-1",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:00Z",
});
root.append({
type: "call.error",
requestId: "req-1",
error: { code: "ERR", message: "failed" },
timestamp: "2026-01-01T00:00:01Z",
});
expect(root.getStatus("a")).toBe("failed");
root.setRequestId("a", "req-2");
root.append({
type: "call.requested",
requestId: "req-2",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:02Z",
});
expect(root.getStatus("a")).toBe("running");
root.append({
type: "call.responded",
requestId: "req-2",
output: "ok",
timestamp: "2026-01-01T00:00:03Z",
});
expect(root.getStatus("a")).toBe("completed");
root.dispose();
});
it("getResult reflects latest attempt after retry", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.append({
type: "call.requested",
requestId: "req-1",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:00Z",
});
root.append({
type: "call.error",
requestId: "req-1",
error: { code: "ERR", message: "failed" },
timestamp: "2026-01-01T00:00:01Z",
});
root.setRequestId("a", "req-2");
root.append({
type: "call.requested",
requestId: "req-2",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:02Z",
});
root.append({
type: "call.responded",
requestId: "req-2",
output: { retry: true },
timestamp: "2026-01-01T00:00:03Z",
});
const result = root.getResult("a");
expect(result).toBeDefined();
expect(result!.status).toBe("completed");
expect(result!.output).toEqual({ retry: true });
root.dispose();
});
it("event log preserves full history across retries", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.append({
type: "call.requested",
requestId: "req-1",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:00Z",
});
root.append({
type: "call.error",
requestId: "req-1",
error: { code: "ERR", message: "failed" },
timestamp: "2026-01-01T00:00:01Z",
});
root.setRequestId("a", "req-2");
root.append({
type: "call.requested",
requestId: "req-2",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:02Z",
});
root.append({
type: "call.responded",
requestId: "req-2",
output: "ok",
timestamp: "2026-01-01T00:00:03Z",
});
const events = root.getEvents("a");
expect(events.length).toBe(4);
expect(events[0]!.type).toBe("call.requested");
expect(events[0]!.requestId).toBe("req-1");
expect(events[1]!.type).toBe("call.error");
expect(events[1]!.requestId).toBe("req-1");
expect(events[2]!.type).toBe("call.requested");
expect(events[2]!.requestId).toBe("req-2");
expect(events[3]!.type).toBe("call.responded");
expect(events[3]!.requestId).toBe("req-2");
root.dispose();
});
it("retry clears failed status so downstream preconditions can be met", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.setRequestId("b", "req-b");
root.append({
type: "call.requested",
requestId: "req-1",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:00Z",
});
root.append({
type: "call.error",
requestId: "req-1",
error: { code: "ERR", message: "failed" },
timestamp: "2026-01-01T00:00:01Z",
});
expect(root.blockedByFailure.get("b")!.value).toBe(true);
root.setRequestId("a", "req-2");
root.append({
type: "call.requested",
requestId: "req-2",
operationId: "a",
input: null,
timestamp: "2026-01-01T00:00:02Z",
});
root.append({
type: "call.responded",
requestId: "req-2",
output: "ok",
timestamp: "2026-01-01T00:00:03Z",
});
expect(root.getStatus("a")).toBe("completed");
expect(root.blockedByFailure.get("b")!.value).toBe(false);
root.dispose();
});
it("requestIdToNodeKey preserves all requestIds including previous attempts", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.setRequestId("a", "req-2");
expect(root.requestIdToNodeKey.get("req-1")).toBe("a");
expect(root.requestIdToNodeKey.get("req-2")).toBe("a");
root.dispose();
});
it("dispose clears requestIdToNodeKey", () => {
const graph = makeSimpleGraph();
const root = new WorkflowReactiveRoot(graph);
root.setRequestId("a", "req-1");
root.setRequestId("a", "req-2");
expect(root.requestIdToNodeKey.size).toBe(2);
root.dispose();
expect(root.requestIdToNodeKey.size).toBe(0);
});
});
describe("abort cascade", () => {
it("failed node causes downstream dependents to abort (continue-running default)", () => {
const graph = makeSimpleGraph();