Capability Catalog

by chaitanyagiri

Capability Catalog is an AI Engineering skill for Claude Code, published by chaitanyagiri in munder-difflin.

2.2K stars253 forkson chaitanyagiri/munder-difflinAdded 2026/08/19+221% in starsRepository updated 2026/08/19

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agentsclaude-codefreeharnessharness-engineeringmemory

Install in seconds

Install Capability Catalog

Copy Capability Catalog into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/chaitanyagiri/munder-difflin/tree/main/resources/skills/capabilities ~/.claude/skills/capabilities

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/chaitanyagiri/munder-difflin.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: resources/skills/capabilities/SKILL.md in chaitanyagiri/munder-difflin
Installs to: ~/.claude/skills/capabilities
Collection: One of 17 skills cataloged from this repository
Category: AI Engineering — 2451 skills

What Capability Catalog does

Capability Catalog lists the temporal date-range skills and external integrations available to a spawned worker and exactly how to call each. Use it at boot or whenever unsure what tools or integrations you have.

Capability Catalog is cataloged under AI Engineering on DirSkills. Capability Catalog comes from a repository tagged agents, claude-code, free, harness and harness-engineering.

Documentation

README

Excerpt

Worker Capability Catalog

You are an autonomous worker spawned by the hive to do one objective and report back. This catalog tells you what you can do and how to call it — your temporal skills and your external integrations — so you don't have to guess. Everything here is read-only to invoke (the integrations themselves may act, but they are mediated and credential-free from your side).

1. Your environment

The harness injects these env vars (use them; don't hard-code paths):

This is the opening of the README. Read the full README on GitHub.

Commands Capability Catalog provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/today
/yesterday
/temporal

Frequently asked about Capability Catalog

What else does chaitanyagiri publish alongside Capability Catalog?
Capability Catalog is one of 17 skills that DirSkills catalogs from chaitanyagiri/munder-difflin, the repository it ships in. Its siblings there include Fetch & Summarize, Last 30 Days and Last 7 Days. Each one is a separate skill with its own page in this directory, installs the same way Capability Catalog does, and is maintained by chaitanyagiri in that same repository. The rest of the collection is listed on the chaitanyagiri/munder-difflin page.
How does Capability Catalog compare to other AI Engineering skills?
Capability Catalog ranks #841 by stars among the 2451 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Capability Catalog against them. Open each page to compare what they document and how they install.