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trac3r00trac3r00/agent-skills/skills/api-tester/SKILL.md

api-tester

Skill0 starsChanged 3 months agoMITView on GitHub

Fires real HTTP requests and validates responses against expectations — status code, JSON field values (dot-notation paths), latency budget, content-type — with stdlib urllib, no requests library, no curl subprocess. Use to verify endpoints from CI or an agent session, smoke-test a deploy, or prove an API behaves as documented before building on it.

6 other projects use a version of this.

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SKILL.md

API Tester

Agents write API calls; this proves the server answers what you expect.

Commands

python3 scripts/api_tester.py https://api.example.com/health
python3 scripts/api_tester.py URL --expect-status 200 --expect-json ok=true
python3 scripts/api_tester.py URL --expect-json data.user.id=42
python3 scripts/api_tester.py URL --method POST --body '{"x":1}' \
    --header "Authorization: Bearer $TOKEN"
python3 scripts/api_tester.py URL --max-latency-ms 500 --json

Checks

CheckFlagGate
Status code--expect-status (default 200)exit 1 on mismatch
JSON fields--expect-json key=value (repeatable, dot paths)exit 1 on mismatch or missing
Latency--max-latency-msexit 1 over budget
Reachability—exit 2 when the host is down

Pairs with

env-gate (is the environment configured), verification-before-completion (the discipline that makes you run this before claiming the endpoint works), webapp-testing (when the surface is a page, not JSON).

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