Tom Boucher 1a678eb0e9 fix(#1359): migrate workflows off deprecated TaskOutput to Read(outputFile) (#1362) ...

* fix(#1359): migrate workflows off deprecated TaskOutput to Read(outputFile)

The map-codebase and docs-update workflows collected background sub-agent
results with the deprecated Claude Code `TaskOutput` tool using `block: true`,
which has a confirmed main-session hang after the agent completes
(anthropics/claude-code#20236).

Migrate the collection steps to the upstream-recommended pattern: keep
`run_in_background=true` on the Agent spawn, then `Read` each agent's
`outputFile` (from the `async_launched` result) once it reports completion.
Completion-marker contracts and on-disk verification are unchanged, and the
non-Claude runtime fallbacks (sequential_mapping / sequential_generation) are
preserved byte-for-byte. docs-update's timeout note no longer references the
unwired `workflow.subagent_timeout` key (it kept a literal before).

Regression coverage folded into tests/subagent-timeout.test.cjs (the owning
module for background-subagent collection). Workflow size baseline regenerated
for the justified prose growth.

Refs #1355 (same latent hang surface).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* chore(#1359): add changeset for TaskOutput migration

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

2026-06-16 21:55:45 -04:00

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