Audit native process execution for command-stream

[konard]

Summary

• Added src/command-stream-exec.lib.mjs, a command-stream-backed adapter for legacy exec call sites that need { stdout, stderr } and nonzero-exit errors.
• Migrated eligible native exec wrappers across GitHub merge/retry helpers, invite handling, limits, git checks, session/status probes, screen helpers, and runtime discovery.
• Added default-suite audit coverage so new native child_process usage must either migrate to command-stream or carry a documented exception.
• Documented the research, before/after scans, remaining exceptions, and upstream command-stream blockers in the issue Double check that we use https://github.com/link-foundation/command-stream for all CLI and TUI operations #1864 case study.

Case study: https://github.com/link-assistant/hive-mind/blob/issue-1864-58f21a62b46d/docs/case-studies/issue-1864/README.md

Reproduction and verification

• node tests/test-issue-1864-command-stream-audit.mjs
• node tests/test-command-stream-exec-wrapper-1864.mjs
• node tests/github-rate-limit.test.mjs
• node tests/test-execgh-transient-retry-1756.mjs
• Focused migrated-area tests listed in the case study
• npm test > ci-logs/local-npm-test.log 2>&1 - passed all 231 selected default test files
• npm run lint > ci-logs/local-npm-lint.log 2>&1 - passed
• npm run format:check > ci-logs/local-npm-format-check.log 2>&1 - passed

Upstream command-stream notes

Existing upstream command-stream issues cover the blockers that kept 20 native-process exceptions, including process lifecycle/kill access, signal support, spawn/execFile-style argv execution, sync execution, and known quoting/output issues. No duplicate upstream issue was filed.

Fixes #1864

[konard]

Working session summary

Implemented and pushed the fix on issue-1864-58f21a62b46d.

PR #1865 is ready for review: #1865

Key changes:

• Added src/command-stream-exec.lib.mjs as the command-stream-backed exec adapter.
• Migrated eligible native exec usage across GitHub helpers, invite flows, limits/git/session/status probes, screen helpers, and runtime discovery.
• Added default-suite regression coverage in tests/test-issue-1864-command-stream-audit.mjs and tests/test-command-stream-exec-wrapper-1864.mjs.
• Added the issue case study and audit artifacts under docs/case-studies/issue-1864/README.md.
• Added a patch changeset after CI reported the missing changeset gate.

Verification:

• npm test passed all 231 selected default test files.
• npm run lint passed.
• npm run format:check passed.
• scripts/validate-changeset.mjs passed with explicit base/head SHAs.
• Latest GitHub Actions run for 337096b5 passed: https://github.com/link-assistant/hive-mind/actions/runs/27135945492

Working tree is clean.

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This summary was automatically extracted from the AI working session output.

[konard]

🤖 Solution Draft Log

This log file contains the complete execution trace of the AI solution draft process.

💰 Cost estimation:

• Model: GPT-5.5
• Provider: OpenAI
• Public pricing estimate: $24.000829

📊 Context and tokens usage:

• 823.8K / 1.1M (78%) input tokens, 57.2K / 128K (45%) output tokens

Total: (823.8K + 13.2M cached) input tokens, 57.2K output tokens, $24.000829 cost

🤖 Models used:

• Tool: OpenAI Codex
• Requested: gpt-5.5
• Model: GPT-5.5 (gpt-5.5)

📎 Log file uploaded as Repository (70010KB)

• View complete solution draft log

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Now working session is ended, feel free to review and add any feedback on the solution draft.

[konard]

✅ Ready to merge

This pull request is now ready to be merged:

• All CI checks have passed
• No merge conflicts
• No pending changes

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