Drift detection + apply for a scaffolded harness. Re-renders the template with the same vars, computes added/removed/changed file plan, and applies with Git-style conflict markers or .rej files. Default is dry-run.
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See how to installReview the instructions the agent will receive before you install.
Codex skill: drift detection + apply for a scaffolded harness.
Re-renders the template that produced the harness against the current generator version, using the same vars the original scaffold used. Computes a 3-bucket plan:
| Bucket | Meaning |
|---|---|
| added | upstream template now has files the harness doesn't |
| removed | upstream template no longer has files the harness does |
| changed | upstream and harness differ; sub-classified clean vs conflict |
A clean change means the harness's version equals the original generation — apply safely. A conflict means the user edited the file post-scaffold; the apply step writes either Git-style inline markers or a .rej sidecar for manual merge.
/upgrade-harness # dry-run on cwd
/upgrade-harness path=./my-harness
/upgrade-harness path=./my-harness apply=true
/upgrade-harness path=./my-harness apply=true conflict=rej
harness upgrade ./my-harness # dry-run
harness upgrade ./my-harness --apply # apply, inline conflicts
harness upgrade ./my-harness --apply --conflict=rej # apply, .rej sidecars
scaffold (create-agent-harness)
↓
edit (you)
↓
upgrade (this skill) <- catches up to the latest template
↓
sign / verify / publish
| Code | Meaning |
|---|---|
| 0 | No drift OR clean apply (no conflicts) |
| 1 | Unresolved conflicts after apply, OR not a generated harness, OR template missing |
| 2 | Bad --conflict= value |
CI workflows can gate on exit 1 to flag unresolved conflicts.
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Diff two scaffolded harnesses (ADR-031). Reports manifest meta drift + host list + per-file fingerprint changes (added/removed/changed). Exits 0 IDENTICAL, 1 DRIFT, 2 missing manifest. Use --bundle for the ADR-031 schema-1 JSON envelope.
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Scaffold your own focused AI agent harness — pick host (Claude Code, Codex, pi.dev, Hermes), template, agents, skills, and ship a npm-publishable harness with its own npx CLI. Use when a user asks to "create my own agent harness", "scaffold a harness", "make a custom Claude Code plugin like ruflo", or "build a vertical AI assistant for X".
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Kernel-version skew check (ADR-027). Reports manifest surface + manifest kernel + installed kernel + verdict (match/patch-diff/minor-diff/major-diff). Exits 1 on minor/major skew with a copy-pasteable `npm install @metaharness/kernel@X.Y.Z` next step. Exits 2 if no .harness/manifest.json at path.
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Evolve this harness with Darwin Mode — frozen model, evolving harness (real, sandboxed, safety-gated).
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Scaffold a ready-made AI agent harness in one command from the 19 published @metaharness/* example packages — 9 host integrations (Claude Code, Codex, Hermes, pi.dev, OpenClaw, RVM, Copilot, OpenCode, GitHub Actions) + 10 vertical pods (devops, research, trading, support, legal, coding, education, sales, gaming, repo-maintainer).
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GCP Secret Manager integration: validate setup, fetch values, or confirm an NPM_TOKEN is non-revoked via `npm whoami`. Used for publish-time token rotation without long-lived keys in CI.
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