Files
alkhttp/tasks/adapters/review-001-ref-cycle-guard.md
T
glm-5.3-flash 12b35e2c5f docs(tasks): decompose review 001 remediation Units 1-5 into taskgraph tasks
21 review-001 tasks across server/adapters/client/gateway/websocket/infra,
chunked from the 7-unit remediation plan in
docs/reviews/001-initial-implementation-review.md.

- Scope split by mechanism, not one-per-finding: 15 tasks in generation 1
  (parallelizable), 6 sequenced after their file-sharing precursors
- Deliberately deferred until dependent fixes land: projection/doc
  fidelity partial (Unit 6 beyond dependency hygiene), coverage backfills
  (COV-01..07 via in-task acceptance for forward.rs), and per-finding
  minors (OAI-06/07, HY-02/04/06/10/11, CON-08)
- Cross-crate WS-12 (alkcall demux 4 GiB discard alloc) noted for filing
  in alkcall, not here

taskgraph: validate clean, no cycles, 6 generations
2026-08-29 07:10:15 +00:00

2.3 KiB

id, name, status, depends_on, scope, risk, impact, level, tags
id name status depends_on scope risk impact level tags
review-001-ref-cycle-guard Bounded, cycle-safe $ref resolution (OAI-01, OAI-08) pending
narrow high component implementation
adapters
review-001
from-openapi

Description

Review 001 finding OAI-01 — the single highest-severity finding in the review (borderline critical, empirically verified): resolve_refs_recursive (src/adapters/openapi_spec.rs:199-221) recurses with no cycle detection and no depth budget. A self-referential component ({"$ref":"#/components/schemas/Node"} inside Node — trees, linked lists, cursor pagination: common and valid OpenAPI) recurses until the stack is exhausted: thread has overflowed its stack; fatal runtime errorprocess abort. Not a catchable panic; import() kills the whole process — startup crash-loop, or remote DoS if specs are ever runtime-refreshed/peer-supplied.

Fix: depth budget + visited set keyed on the JSON-pointer path, returning a clean CallError/import error on cycles and over-deep specs. Do not try to preserve full recursive expansion of recursive schemas — the goal is a clean, loud error (or a depth-limited expansion where the adapter can safely represent it), not unbounded expansion.

Ride-along: OAI-08 — guarded expects in openapi_spec.rs:144,170 (the "no expect outside tests" convention; if let costs nothing).

Acceptance Criteria

  • Import of a self-referential spec returns an error — the process does not abort (the review's named acceptance gate: a test importing a self-referential spec would have caught the abort immediately)
  • Deeply-nested non-circular spec beyond the budget errors cleanly at import (test)
  • A non-recursive spec with $ref sharing (refs to a common schema) still imports identically — no false cycle positives (existing suite green)
  • OAI-08 expects replaced
  • cargo test and cargo clippy --all-targets -- -D warnings pass

References

  • docs/reviews/001-initial-implementation-review.md (Part E, OAI-01, OAI-08)

Notes

Agent fills during implementation. Do before anything deployment-facing. Deliberately split from the parameter/requestBody work (review-001-openapi-import-integrity) so the delicate cycle-detection change lands alone.

Summary

Filled on completion.