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glm-5.1 c9c32a6aa6 decompose reconciler roadmap into 20 implementation tasks across 5 phases

Tasks follow the architecture spec phases:
- Phase 0: key field on UElement (2 tasks + review)
- Phase 1: reactive-host bridge / fiber tree (4 tasks + review)
- Phase 2: key-based children reconciliation (3 tasks + review)
- Phase 3: unmount & dispose support (4 tasks)
- Phase 4: TypeBox value optimizations (4 tasks)

Validated with taskgraph CLI: no cycles, 15 parallel generations,
3 high-risk tasks identified (signal-driven-updates, commit-mutations,
fiber-disposal).

2026-05-18 16:26:52 +00:00

1.4 KiB

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id, name, status, depends_on, created, modified, scope, risk, impact, level

name

status

depends_on

created

modified

scope

risk

impact

level

review-key-field

Review key field implementation

pending

key-on-uelement

key-extraction-in-h

2026-05-18T16:22:57.125725833Z

2026-05-18T16:22:57.125726289Z

narrow

low

phase

review

Description

Review the implementation of the key field on UElement before proceeding to the fiber tree and reconciler phases. This is a critical checkpoint because every downstream task depends on key being correctly added to the schema and extracted by h().

Verify schema/type consistency, backward compatibility, and that ADR-004's consequences are properly handled.

Acceptance Criteria

UElement TypeScript type matches TypeBox Module schema for key field
key never appears in component function props
Backward compatibility: unkeyed elements work identically to pre-key behavior
TypeBox Value.Check passes for both keyed and unkeyed elements
No unintended key: undefined serialization on unkeyed elements (verify JSON output)
All existing + new tests pass
isUElement guard still correctly discriminates from URoot

References

docs/architecture/schema.md
docs/architecture/decisions/004-key-as-first-class-field.md
docs/architecture/element-factory.md

Notes

To be filled on completion of review

Summary

To be filled on completion

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