Port mutation harness to Node (drop the lone .py) - #19
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The harness was the only Python in an otherwise all-TypeScript/Node repo — it started as bash, went Python to escape shell-quoting of TS string literals, but that's a non-issue in Node. Rewrite as scripts/invariant-mutation-probe.mjs (Node built-ins only: child_process/fs/path), delete the .py, and point the CI step at `node` instead of `python3`. No new language in the stack, no python3 dependency in CI or pre-push. Behaviour is identical: same edge table, same ANCHORED/VACUOUS/SHADOWED/INVALID classification (NO_COLOR + ANSI strip + multi-marker match), --changed incremental mode, strict exit, captured-output diagnostics, git-revert safety. Verified locally: full sweep 6 anchored / 1 shadowed / exit 0; fail path (drifted match) exit 1. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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| Status | Name | Latest Commit | Updated (UTC) |
|---|---|---|---|
| ✅ Deployment successful! View logs |
mnemion | 35f7972 | Jun 25 2026, 07:37 PM |
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The mutation harness was the only Python in an all-TypeScript/Node repo (it went Python to dodge bash string-quoting, a non-issue in Node). Rewrite as
scripts/invariant-mutation-probe.mjs(Node built-ins only), delete the.py, and point the CI step atnodeinstead ofpython3— no new language in the stack, nopython3dependency in CI/pre-push.Behaviour identical: same edge table, same ANCHORED/VACUOUS/SHADOWED/INVALID classification (NO_COLOR + ANSI strip + multi-marker match),
--changedincremental mode, strict exit, captured-output diagnostics, git-revert safety. Verified locally: full sweep 6 anchored / 1 shadowed / exit 0; fail path exit 1. This PR touches no chokepoint, so the PR-event step runs--changed(trivial pass); full-mode runs on the post-merge main push.🤖 Generated with Claude Code