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Use composable middleware behaviors for provider/tool execution: retry, caching, timeout, telemetry, and budget guards.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
SOC 직업 분류 기준
Use this skill whenever a decision is made about architecture, dependencies, frameworks, naming conventions, or layer order. Creates a numbered ADR (Architecture Decision Record) in `.harness/docs/adr/` in the canonical Nygard format. Always invoke this before changing layer order, adding a layer, swapping a major dependency, or introducing a new external service.
Use this skill whenever the user asks to add, implement, or build a new feature, capability, endpoint, page, command, or anything user-visible. Enforces the Anthropic two-fold harness pattern — read .harness/feature_list.json, pick exactly one feature, implement incrementally, run the structural test on every save, and never declare "done" without updating the JSON. Always invoke this skill instead of writing new feature code freehand.
Use this skill whenever the user reports a bug, unexpected output, or "this doesn't work". Runs the dev server, drives the failing flow via Playwright MCP if installed (else captures stdout/stderr), and produces a minimal repro before any fix. Mirrors the OpenAI Chrome-DevTools-Protocol-into-runtime pattern at solo scale — verify the failure before you propose a fix.
Use this skill whenever the user asks to analyze, audit, review, summarize, produce a report, write a plan, make a proposal, draft a decision doc, list "next actions", or any other task that produces a DOCUMENT a HUMAN reads-and-acts-on. Outputs a self-contained <slug>.html at repo root using the shared dark-theme CSS. Why HTML and not Markdown: golden principle #9 — Markdown is great for files an agent reads-and-edits (CLAUDE.md, SKILL.md, ADRs), but a HUMAN reading a 700-line MD deliverable will scroll, miss the conclusion, and ask the agent to clarify — burning turns and tokens. HTML deliverable is read once, decided once. Do NOT use this skill for files the agent itself reads (those stay MD), for stdout output from /review-this-pr or /garbage-collection (pass-through MD), or for short summaries under ~30 lines (overhead not worth it).
Use this skill weekly, before releases, or when the user mentions "stale docs", "doc drift", "docs are wrong", or "the README is out of date". Cross-checks every code path, file path, and command referenced in `.harness/docs/` and `CLAUDE.md` against the current repo state and produces a list of stale references — the doc-gardening agent pattern.
Use this skill whenever a skill, subagent, or hook is changed, before merging to main, or when the user mentions "eval", "regression test for the harness", or "is the harness still working". This skill is a thin wrapper — it runs a single shell command (`npm run harness:eval` or `python -m harness.eval_runner`) and summarizes the JSONL output. Do not implement the eval logic yourself; the runner is already deterministic.
| name | middleware-pipeline |
| description | Use composable middleware behaviors for provider/tool execution: retry, caching, timeout, telemetry, and budget guards. |
Provides five composable behaviors via src/core/middleware/pipeline.mjs:
withRetry()withCaching()withTimeout()withTelemetry()withBudget()const run = composeMiddleware(baseRun, [
withTelemetry({ sink }),
withBudget({ maxInputTokens: 100000 }),
withTimeout({ ms: 30000 }),
withRetry({ attempts: 2 }),
withCaching(),
]);
node .harness/scripts/middleware-demo.mjs