Use when mining external JS/TS libraries, runtimes, papers, benchmark suites, bug corpora, or production systems for ideas that should become local tests, fuzzers, benchmarks, or evidence notes.
Installs into .claude/skills of the current project.
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---
name: source-pass-harvester
description: Use when mining external JS/TS libraries, runtimes, papers, benchmark suites, bug corpora, or production systems for ideas that should become local tests, fuzzers, benchmarks, or evidence notes.
---
# Source Pass Harvester
Source passes turn external inspiration into local evidence. They are a fetch/cache/classify/transfer loop, not just agent-written notes.
## Workflow
1. Search local evidence memory first:
```sh
npm run docs:perf:search -- <topic terms>
npm run research:list
```
2. Define the question: what weakness or workload are we trying to learn about? If the target project still lacks target-owned contracts, corpus seeds, or benchmark fixtures, use `target-evidence-designer` first.
3. Add or update a repeatable fetcher and source config:
```sh
npx evidence-kit add-source-fetcher --name <topic>
npm run research:fetch -- <topic>
```
Fetchers should cache external repos under `research/repos/<topic>/`, raw data or metadata under `benchmarks/data/<topic>/`, and write `research/repos/<topic>/manifest.json`.
4. Inspect fetched material for test practice, fuzzer structure, benchmark fixture shape, failure handling, package boundaries, startup budgets, and corpus curation.
5. Transfer ideas into local artifacts:
- tests,
- fuzzer corpus cases,
- benchmark fixtures,
- package-boundary checks,
- iteration/research notes.
6. Keep runtime dependencies out unless the benchmark proves they are worth it.
7. Record rejected ideas explicitly.
## Decision Filter
Accept an idea only when it is:
- generic enough for the project contract,
- backed by a local test or benchmark,
- not hard-coded to the source project's domain names,
- not adding hidden state or dependencies without a clear contract.
## Output
Create or update a `research/*-sources.md` note and an `iterations/*-source-pass.md` note. Include source names, URLs, commits or hashes, local cache paths, manifest path, commands, accepted transfers, rejected transfers, and artifact paths.
