dynamic-tools SKILL.md skillA

This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.

dynamic-tools from opencrabs/opencrabs is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add opencrabs/opencrabs/dynamic-tools@git:20260613.0bb4b03

Pins git:20260613.0bb4b03 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
opencrabs/opencrabs
Path
src/docs/reference/templates/skills/dynamic-tools/SKILL.md
Versions recorded
3
Latest version
git:20260613.0bb4b03, committed Jun 13, 2026
First version recorded
May 3, 2026
Size
5,102 bytes
Repository stars
1,000
License
MIT

Runtime tool management with tool_manage and tools.toml format. Create, enable, disable, reload tools without restart. (/dynamic-tools, tool_manage, runtime tools).

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

# Dynamic Tools Reference

Runtime tool creation — define tools in `~/.opencrabs/tools.toml` and they become callable immediately without restart or rebuild.

## tool_manage Meta-Tool

| Action | Required | What |
|--------|----------|------|
| `list` | — | Show all dynamic tools with enabled/disabled status |
| `add` | `name`, `description`, `executor`, `method`/`command` | Create new tool (persists to tools.toml) |
| `remove` | `name` | Delete a tool |
| `enable` / `disable` | `name` | Toggle without removing |
| `reload` | — | Hot-reload from tools.toml |

## Executor Types

Two executor types, set via the `executor` field:

| Executor | Field |
|----------|-------|
| `executor = "shell"` | `command` — shell command string |
| `executor = "http"` | `method`, `url` — HTTP method and endpoint |

## Parameter Handling

Every tool parameter defined in `[[tools.params]]` becomes available in two ways:

1. **`$OPENCRABS_PARAMS`** — Environment variable pointing to a temporary JSON file containing **all** params with their current values. The file is created before the command runs and cleaned up after. Use with `--params-file` flags or read directly inside scripts:

   ```toml
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add opencrabs/opencrabs/dynamic-tools@sha256:0dbd42b1e29869a6

The line at the top of this page pins the label git:20260613.0bb4b03, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_ukcf6bhzmz7rv333.svg)](https://markdownregistry.com/a/art_ukcf6bhzmz7rv333)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between May 3, 2026 and Jun 13, 2026, about one every 20 days.

versioncommittedcommitsizeaudit
git:20260613.0bb4b03 latest2026-06-13 0bb4b03 5,102 BA view · diff
git:20260613.397f0e62026-06-13 397f0e6 5,035 BA view · diff
git:20260503.68c0c2a2026-05-03 68c0c2a 1,796 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (5102 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

GitHub

opencrabs/opencrabs · 1,000 stars · license MIT · pushed 2026-10-20 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_ukcf6bhzmz7rv333
GET https://markdownregistry.com/api/v1/resolve?ref=opencrabs/opencrabs/dynamic-tools
GET https://markdownregistry.com/api/v1/blob/0dbd42b1e29869a62326ecdaa9cda42e5557e431be712340d96179f304147340

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.

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Every file in opencrabs/opencrabs

Other files named dynamic-tools

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git:20260613.0bb4b03 · audit A · 1,004 stars

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