harness-score
5-dimension harness readiness scorecard from `metaharness score <path>`. Returns harnessFit / compileConfidence / taskCoverage / toolSafety / memoryUsefulness + estCostPerRunUsd + scaffoldReady. Pure-read; subprocess invocation; degrades gracefully when MetaHarness is absent (ADR-150 architectural constraint).
Profile →npx skills add ruvnet/ruflo --skill harness-score --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
Surfaces the upstream `metaharness score` CLI as a ruflo skill. Use when Claude Code needs to assess whether a repo is ready for harness adoption before recommending the user run `npx ruflo init` or `harness-mint`. ## Algorithm Implementation: [`scripts/score.mjs`](../../scripts/score.mjs). 1. Shell out to `npx metaharness score <path> --json` (single subprocess, 60s hard timeout). 2. Parse the JSON shape: `{ harnessFit, compileConfidence, taskCoverage, toolSafety, memoryUsefulness, estCostPerRunUsd, recommendedMode, archetype, template, scaffoldReady, hardConstraints }`. 3. If `--alert-on-fit-below N`: exit 1 when `harnessFit < N`. 4. Output JSON (default) or markdown table. ## Phase-0 baseline (ruflo's own scorecard, measured 2026-06-16) | Dimension | Value | |---|---:| | harnessFit | 82/100 | | compileConfidence | 100 | | taskCoverage | 79 | | toolSafety | 100 | | memoryUsefulness | 40 | | estCostPerRunUsd | $0.048 | | recommendedMode | CLI + MCP | | archetype | typescript-sdk-harness | | template | vertical:coding | | scaffoldReady | true | Ruflo passes its own readiness check. `memoryUsefulness: 40` is the weakest dimension — track this as a leading indicator for future memory
- Algorithm
- Phase-0 baseline (ruflo's own scorecard, measured 2026-06-16)
- CI integration
- Graceful degradation (ADR-150 architectural constraint rule #3)
node plugins/ruflo-metaharness/scripts/score.mjs --alert-on-fit-below 70 --format json
What does the harness-score skill do?
5-dimension harness readiness scorecard from `metaharness score <path>`. Returns harnessFit / compileConfidence / taskCoverage / toolSafety / memoryUsefulness + estCostPerRunUsd + scaffoldReady. Pure-read; subprocess invocation; degrades gracefully when MetaHarness is absent (ADR-150 architectural constraint).
How do I install it?
Run `npx skills add ruvnet/ruflo --skill harness-score --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From ruvnet/ruflo, a repository with 67,015 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.