[jdx]

Summary

• map normalized workspace-relative paths to the projects at their deepest matching root
• preserve all overlapping project owners and retain unowned paths for later global-input policy
• mark the first affected-project execution milestone complete

Why

Affected execution needs a provider-neutral way to turn changed paths into project IDs before Git revision handling or reverse-dependency expansion is added. The lookup indexes project roots once and walks each path ancestor chain, avoiding a scan of every project for every changed file.

Validation

• cargo fmt --check
• cargo test task::workspace::tests
• cargo clippy --workspace --all-features --all-targets -- -D warnings
• git diff --check

AI-assisted — Tool: Codex; model: unavailable/unavailable; version: unavailable.

[coderabbitai]

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[greptile-apps]

Greptile Summary

Adds a workspace path-to-project ownership API.

• Maps normalized workspace-relative paths to projects at the deepest matching root.
• Preserves multiple projects sharing the same root and tracks unowned paths.
• Adds tests for nested roots, normalization, deduplication, and invalid paths.
• Marks changed-file project mapping complete in the parity tracker.

Confidence Score: 5/5

The PR appears safe to merge, with no actionable correctness or security issues identified.

The new API consistently normalizes workspace-relative paths, selects owners at the documented deepest project root, preserves equal-root ownership across providers, and rejects paths outside the workspace.

Important Files Changed

Filename	Overview
src/task/workspace.rs	Adds a deterministic, validated path ownership map with focused coverage; no actionable defect was found.
TASK_CACHE_PARITY.md	Marks the newly implemented changed-file ownership mapping milestone complete.

_{Reviews (1): Last reviewed commit: "feat(task): map changed files to workspa..." | Re-trigger Greptile}

[github-actions]

Instruction counts

benchmark	trend	instructions	Δ	wall (min)	Δ
env	▃▄▄█▇▅▆▅▅▅▆▃▂▁▁▄▃▃▃▇	84,668,464 → 84,866,542	+0.23%	17.89 → 18.61ms	+4.02%
hook-env	▅▅▅█▇▇▇▇▇▄▇▄▁▃▃▅▂▆▅█	87,067,676 → 87,186,255	+0.14%	19.01 → 18.83ms	-0.96%
ls	▅▆▅█▅▅▄▅▅▄▇▂▁▃▂▂▁▄▅▆	76,687,691 → 76,702,873	+0.02%	15.57 → 15.42ms	-0.98%
registry	▁▁▁▆▅▄▄▅▆▅▆▂▇▂▂▂█▅▃▅	50,212,106 → 50,306,199	+0.19%	11.62 → 11.48ms	-1.24%
startup	▁▁▁▇▆▆▆▆▆▆▇▃▂▂▂▃▃▇▆█	16,075,010 → 16,115,051	+0.25%	7.86 → 8.57ms	+9.02%

No instruction-count regression above 1%.

_{Only instruction counts gate. Wall clock is shown for context — on identical hardware it moves 4-20% run to run.}

_{Measured by tak — instruction-counted CLI benchmarks, stored in this repository's git notes.}

_{2f8fa34488e4 vs 48e5c84da4ea · measured on the runner, not pushed to the history.}