ai-patterns-tool-use-patterns SKILL.md skillA
ai-patterns-tool-use-patterns from agents-inc/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agents-inc/skills/ai-patterns-tool-use-patterns@git:20261016.afd0e14Pins git:20261016.afd0e14 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agents-inc/skills
- Path
src/skills/ai-patterns-tool-use-patterns/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261016.afd0e14, committed Oct 16, 2026
- First version recorded
- Mar 23, 2026
- Size
- 17,632 bytes
- Repository stars
- 26
- License
- MIT
Provider-agnostic patterns for LLM function calling, tool loops, and agentic workflows.
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
# Tool Use Patterns > **Quick Guide:** Tool use (function calling) lets LLMs invoke external functions. The universal pattern is: define tool schemas (JSON Schema for parameters) -> send tools + message to LLM -> detect tool_use in response -> execute locally -> return result to LLM -> repeat until the model responds with text. Guard every loop with a max-step limit, validate all tool inputs before execution, and return structured errors so the model can recover. Use tool choice control (`auto`, `required`, `none`, specific tool) to steer model behavior. --- <critical_requirements> ## CRITICAL: Before Using This Skill **(You MUST guard every tool loop with a maximum step limit -- unbounded loops risk infinite API calls and runaway costs)** **(You MUST validate all tool input arguments before execution -- LLM-generated arguments are untrusted input)** **(You MUST return structured error messages to the model when tool execution fails -- never silently swallow errors or return empty results)** **(You MUST use JSON Schema for tool parameter definitions -- all major providers require this format)** …
Read the whole file at its exact version.
How to install
mdr add agents-inc/skills/ai-patterns-tool-use-patterns@sha256:f10cc6ff86cd7b44The line at the top of this page pins the label git:20261016.afd0e14, 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_5r7yvqsvrk5qz6l7)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Mar 23, 2026 and Oct 16, 2026, about one every 104 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.afd0e14 latest | 2026-10-16 | afd0e14 | 17,632 B | A | view · diff |
| git:20260328.19e48cb | 2026-03-28 | 19e48cb | 17,908 B | A | view · diff |
| git:20260323.1cb6727 | 2026-03-23 | 1cb6727 | 18,789 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 (17632 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
agents-inc/skills · 26 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_5r7yvqsvrk5qz6l7 GET https://markdownregistry.com/api/v1/resolve?ref=agents-inc/skills/ai-patterns-tool-use-patterns GET https://markdownregistry.com/api/v1/blob/f10cc6ff86cd7b440b2be20b09f8a9aa8c451a8f94367f077955cdac2e63fdaa
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.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.