docs(winds): close T059 negative fixtures

[TheHalfMoon]

Spec 003 / T059 closeout

Records canonical completion evidence for T059 after the tests-only negative-fixture PR was accepted, merged, and post-merge proven.

Canonical implementation evidence

• implementation PR: test(winds): add deterministic T059 negative fixtures #41
• final exact implementation head: d39549d3190a4e069d3313df2563f86ba999b78b
• quality #370: PASS on Ubuntu/macOS
• windows-terminal #138: PASS on official windows-latest; attempt 1 failed before checkout/project execution because GitHub codeload returned HTTP 503/429 while downloading the pinned Rust action, and only that failed job was rerun successfully on the unchanged exact head
• release-candidate #206: PASS
• SC-001 controlled 100-cycle soak: PASS
• Linux x86_64 and macOS arm64 release builds/artifacts: PASS
• exact-head correctness/safety/authority review: PASS
• exact-head Ponytail v4.9.0 review: PASS
• independent CodeRabbit exact-head review: Review completed / success
• unresolved review threads: 0

PR #41 was squash-merged with expected-head and unchanged-main guards as canonical main:

64b1a2e67a18a53ed17091ea7754e9d4b1fac077

Post-merge quality #371 and windows-terminal #139 both passed on that exact canonical main.

Accepted T059 scope

The accepted slice is tests-only: one dedicated T059 acceptance module plus #[cfg(test)] wiring. It proves fail-closed invalid/bare/symlinked workspace behavior, local credential-bearing clone sanitization in returned and persisted identity, clone failure before registration, stale executable rejection, unavailable-interpreter PTY start/exec failure as a stable non-zero final exit without script-body execution, immediate exit finality, bounded retained transcript for 1 MiB observed output, and non-executing/non-secret-serializing manifest inventory.

This PR

Changes only specs/003-workspace-execution-spine/tasks.md.

The intended final PR diff is exactly the T059 checklist line: [ ] -> [x] plus canonical evidence. T060 remains [ ] and is not started.

No source, dependency, migration, workflow, runtime, daemon, public protocol, remote runtime, plugin/provider, MCP/ACP/A2A, Agent Fleet, Herdr/Pi, sandbox, fault-injection, race-testing, or verification-authority behavior changes here.

Summary by CodeRabbit

• Tests
  • Expanded validation for workspace execution error scenarios, including invalid workspace identities, credential-bearing clone URLs, clone failures, unavailable shell executables, terminal startup failures, immediate process exits, and bounded output.
  • Added coverage confirming that environment manifests are represented without executing their contents.
  • These checks improve confidence in predictable and secure handling of workspace execution failures.

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Summary by cubic

Marks T059 complete in Spec 003 and records canonical completion evidence for the tests-only negative fixtures. This closes the Phase 7 coverage slice and documents verified implementation and CI results for traceability.

• Changes only specs/003-workspace-execution-spine/tasks.md; toggles T059 to checked and adds canonical evidence references for the merged implementation and cross-platform CI/soak/review passes.
• No source, runtime, protocol, workflow, or test behavior changes. No migration or rollout required.
• Accepted scope is tests-only: negative fixtures for invalid/bare/symlinked workspaces, credential-bearing clone sanitization, clone failure before registration, stale executable rejection, PTY start failure with stable non-zero exit and no script execution, immediate exit finality, bounded output with retained transcript, and non-executing environment manifest inventory. T060 remains unstarted.

^{Written for commit a31b73c. Summary will update on new commits.}

[qodo-code-review]

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🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)

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[qodo-code-review]

PR Summary by Qodo

Mark Spec 003 T059 complete with canonical implementation evidence

📝 Documentation 🕐 Less than 5 minutes

AI Description

• Mark Spec 003 task T059 as completed in the tasks checklist
• Record canonical PR/head, CI, soak, and review evidence proving the accepted tests-only scope
• Clarify that T060 remains unchecked and no runtime/protocol behavior changes are introduced

High-Level Assessment

The approach is appropriate for a closeout: keep completion evidence in the canonical Spec 003 checklist entry so future reviewers have a single authoritative reference. Alternatives (separate evidence file, linking only to PR #41) would reduce inline verbosity but would also make the checklist less self-contained and increase lookup friction.

Files changed (1) +1 / -1

Documentation (1) +1 / -1

tasks.mdClose out T059 with canonical completion evidence +1/-1

Close out T059 with canonical completion evidence

• Marks T059 as complete ([ ] → [x]) and appends a detailed canonical evidence record (implementation PR/head, CI runs, soak, reviews, and post-merge verification). Explicitly states the accepted scope is tests-only and that no T060+ work or behavioral changes are included.

specs/003-workspace-execution-spine/tasks.md

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: ea534f60-3f4e-4740-a982-45d6f6777e2b

📥 Commits

Reviewing files that changed from the base of the PR and between 64b1a2e and a31b73c.

📒 Files selected for processing (1)

• specs/003-workspace-execution-spine/tasks.md

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📝 Walkthrough

Walkthrough

T059 is marked complete. The task record documents tests-only acceptance coverage for workspace execution failure cases, bounded output, and non-executing environment manifests.

Changes

Workspace execution validation

Layer / File(s)	Summary
Acceptance evidence record specs/003-workspace-execution-spine/tasks.md	T059 is checked off and documents the accepted tests-only implementation, canonical evidence, covered failure cases, and explicit non-scope.

Estimated code review effort: 1 (Trivial) | ~2 minutes

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/003-t059-closeout

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