wehub-resource-sync
46 lines
2.4 KiB
Markdown
46 lines
2.4 KiB
Markdown
---
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name: build-test-fix-loop
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description: Builds the next item on the plan, then runs tests, typecheck and lint, feeding every failure back as the next instruction until the build is green.
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category: engineering
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interval: 10m
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stop-condition: The build is green — tests, typecheck and lint all pass — and the checker reports nothing left to fix.
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components: [agent:development-team/test-runner, hook:testing/test-runner, command:testing/generate-tests]
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tags: [testing, build, ci, loop]
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---
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# Build–Test–Fix Loop
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> **Loop Engineering** — the single most-demoed loop pattern: a builder writes code and a checker runs tests, typecheck and lint and reports exactly what broke. They pass work back and forth until it's clean. A one-shot agent ships its bugs; this loop catches them.
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## 🎯 Goal
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Implement the next item on the plan, then run the full check gate (tests + typecheck + lint), feed **every** failure back as the next instruction, and repeat until the build is green.
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## ⏱️ Schedule
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Suggested interval: `10m` (or run until done on a feature).
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## ▶️ Run it
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```
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/loop 10m "Build the next item on the plan, then run tests, typecheck and lint. Feed every failure back as the next instruction and fix it. Add a test for anything that lacked coverage. Stop when the build is green and the checker has nothing left to report."
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```
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## 🔁 Iteration steps
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1. **Build** — implement the next plan item.
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2. **Check** — the `test-runner` hook runs tests, typecheck and lint automatically.
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3. **Reason** — collect every failure into a concrete fix list.
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4. **Act** — fix each; add tests with `/generate-tests` for uncovered paths.
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5. **Observe** — re-run the gate; loop until fully green.
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## 🛑 Stopping condition
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Tests, typecheck and lint all pass and the checker reports nothing outstanding.
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## 💰 Budget & guardrails
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Cap iterations or spend so a stubborn failure can't spin forever — surface anything that fails the same way twice for human eyes.
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## 🧩 Referenced components
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- `agent:development-team/test-runner` — runs and interprets the check gate.
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- `hook:testing/test-runner` — fires the suite automatically each pass.
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- `command:testing/generate-tests` — covers gaps the loop uncovers.
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## 💡 Example
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Implementing a new endpoint, the loop catches a type error, then a failing integration test, then a lint warning — fixing each in turn — and exits only when all three gates are green.
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