Does the one thing this fixture needs. Use when validating the missing-codex-manifest anti fixture for S6.
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
# sf-do-thing
A minimal skill so the fixture is a well-formed plugin.
The line at the top of this page pins the label git:20260529.65ba9a8, 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.
GET https://markdownregistry.com/api/v1/artifacts/art_5jwd3wbqjibkr2fy
GET https://markdownregistry.com/api/v1/resolve?ref=product-on-purpose/agent-skills-toolkit/sf-do-thing
GET https://markdownregistry.com/api/v1/blob/2479b4f45d47ac4414e480ee4f6723c092b59802b1b9189d886dedcdf8df01fc
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
product-on-purpose/agent-skills-toolkit · docs/internal/vendor-watch/probes/components-share-one-namespace/probe-collision-a/skills/probe-duplicate/SKILL.md · PROBE FIXTURE side A. Two plugins ship a skill with this exact directory name and this exact skill name. Invoke it and…
product-on-purpose/agent-skills-toolkit · docs/internal/vendor-watch/probes/components-share-one-namespace/probe-collision-b/skills/probe-duplicate/SKILL.md · PROBE FIXTURE side B. Two plugins ship a skill with this exact directory name and this exact skill name. Invoke it and…
product-on-purpose/agent-skills-toolkit · skills/askit-backlog/SKILL.md · Creates, triages, and prunes a plugin's two backlogs (new-component proposals and enhancements) to the Advanced Skill…
product-on-purpose/agent-skills-toolkit · skills/askit-build-agents-md/SKILL.md · Creates and improves a plugin's AGENTS.md (the agent navigation and instructions entrypoint) to the Advanced Skill…
product-on-purpose/agent-skills-toolkit · skills/askit-build-chain-contract/SKILL.md · Creates and improves a plugin's chain contract (agents/_chain-permitted.yaml) to the Advanced Skill Library Standard…
product-on-purpose/agent-skills-toolkit · skills/askit-build-command/SKILL.md · Creates and improves Claude slash commands (commands/<name>.md) that map to a skill, to the Advanced Skill Library…
product-on-purpose/agent-skills-toolkit · skills/askit-build-hook/SKILL.md · Creates and improves event-driven hooks (Advanced tier) for a plugin to the Advanced Skill Library Standard. Use when…
product-on-purpose/agent-skills-toolkit · skills/askit-build-mcp/SKILL.md · Creates and improves MCP server definitions (a portable .mcp.json) for a plugin to the Advanced Skill Library Standard…
product-on-purpose/agent-skills-toolkit · tests/fixtures/anti/chain-phantom/skills/sf-do-thing/SKILL.md · Converts CSV input into a formatted summary. Use when the user asks to summarize or tabulate spreadsheet data.
product-on-purpose/agent-skills-toolkit · tests/fixtures/golden/silver-fixture/skills/sf-do-thing/SKILL.md · Converts CSV input into a formatted summary. Use when the user asks to summarize or tabulate spreadsheet data.
product-on-purpose/agent-skills-toolkit · tests/fixtures/anti/no-prefix/skills/sf-do-thing/SKILL.md · Converts CSV input into a formatted summary. Use when the user asks to summarize or tabulate spreadsheet data.
product-on-purpose/agent-skills-toolkit · tests/fixtures/anti/workflow-missing-skill/skills/sf-do-thing/SKILL.md · Converts CSV input into a formatted summary. Use when the user asks to summarize or tabulate spreadsheet data.
product-on-purpose/agent-skills-toolkit · tests/fixtures/anti/no-agent-targets/skills/sf-do-thing/SKILL.md · Converts CSV input into a formatted summary. Use when the user asks to summarize or tabulate spreadsheet data.
