schemathesis-fuzzing SKILL.md skillA
schemathesis-fuzzing from testland/qa is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add testland/qa/schemathesis-fuzzing@git:20260725.4f623d0Pins git:20260725.4f623d0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- testland/qa
- Path
plugins/qa-api-testing/skills/schemathesis-fuzzing/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260725.4f623d0, committed Jul 25, 2026
- First version recorded
- Jun 2, 2026
- Size
- 9,412 bytes
- Repository stars
- 11
- License
- MIT
Generates property-based API tests automatically from an OpenAPI 2/3.x or GraphQL schema using Schemathesis, runs them via the `schemathesis run` CLI or as a pytest decorator, configures the canonical checks (status_code_conformance, response_schema_conformance, content_type_conformance, response_headers_conformance, not_a_server_error), and gates CI on schema-conformance failures plus 5xx detection. Use when the project ships an OpenAPI or GraphQL schema and the team wants schema-driven…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# schemathesis-fuzzing
## Overview
Schemathesis is a property-based API testing tool that "automatically
generates property-based tests from your OpenAPI or GraphQL schema
and exercises the edge cases that break your API"
([schemathesis-readme][readme]). The schema is the **single source of
truth** - every endpoint, parameter, and response shape becomes a
generator that produces hundreds of targeted variations per run.
[readme]: https://github.com/schemathesis/schemathesis
This is **complementary** to example-based API testing
(`postman-collections`,
`tavern-testing`,
`restassured-testing`,
`karate-testing`) - example-based tests
verify happy paths; Schemathesis attacks the boundaries the team
forgot.
## When to use
- The repo has an OpenAPI 2.0 / 3.0 / 3.1 / 3.2 spec or a GraphQL
schema (June 2018+).
- The team wants automatic test coverage of new endpoints without
authoring per-endpoint tests.
- Negative-scenario coverage ("what happens with a malformed
request?") is missing or thin.
- A CI gate on **5xx responses** (any unexpected server error) is
desired.
If the API has no schema, Schemathesis cannot help - generate a
…Read the whole file at its exact version.
How to install
mdr add testland/qa/schemathesis-fuzzing@sha256:c4e503306fe6a813The line at the top of this page pins the label git:20260725.4f623d0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_6wnwne4rhbqx6o3n)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jun 2, 2026 and Jul 25, 2026, about one every 13 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260725.4f623d0 latest | 2026-07-25 | 4f623d0 | 9,412 B | A | view · diff |
| git:20260724.d4db756 | 2026-07-24 | d4db756 | 10,577 B | A | view · diff |
| git:20260706.4e1409c | 2026-07-06 | 4e1409c | 10,964 B | A | view · diff |
| git:20260603.21eda0e | 2026-06-03 | 21eda0e | 10,981 B | A | view · diff |
| git:20260602.ce520f0 | 2026-06-02 | ce520f0 | 10,995 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9412 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
testland/qa · 11 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_6wnwne4rhbqx6o3n GET https://markdownregistry.com/api/v1/resolve?ref=testland/qa/schemathesis-fuzzing GET https://markdownregistry.com/api/v1/blob/c4e503306fe6a813b334f508e7063cdee0d1c20857bb5f144bc647c9a918e436
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