capabilities

capabilities is a skill for Claude Code, Codex from chaitanyagiri/munder-difflin. It costs 69 tokens per session (1,449 once invoked), scanned A, original, MIT.

A read-only catalogue of the worker's available capabilities, including date-range skills and external integrations.

In plain words
What is it for?
Use it when checking how to access a capability or integration, or when unsure what the worker can do.
Why use it?
It helps the worker determine which tools and integrations are available before starting a task.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/chaitanyagiri/munder-difflin/capabilities
Any agent
npx skills add chaitanyagiri/munder-difflin --skill capabilities
Clone the repo
git clone --depth 1 https://github.com/chaitanyagiri/munder-difflin

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for capabilities

README.md
[![agentmods](https://agentmods.dev/badge/skills/chaitanyagiri/munder-difflin/capabilities.svg)](https://agentmods.dev/skills/chaitanyagiri/munder-difflin/capabilities)
Your own site
<a href="https://agentmods.dev/skills/chaitanyagiri/munder-difflin/capabilities"><img src="https://agentmods.dev/badge/skills/chaitanyagiri/munder-difflin/capabilities.svg" alt="Measured on agentmods" height="20"></a>
Per session 69 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,449 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00069 $0.01449
Opus 5 $0.00034 $0.00724
Sonnet 5 $0.00014 $0.00290
Haiku 4.5 $0.00007 $0.00145

Measured 4d ago against content hash dad933f43076, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

capabilities scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

resources/skills/capabilities/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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):

  • AGENT_ID, AGENT_NAME — your identity in the hive.
  • AGENT_DIR — your private workspace (identity.md, memory.md, inbox/, outbox/, and .claude/skills/). Your bundled skills live under $AGENT_DIR/.claude/skills/.
  • HIVE_ROOT — the shared hive (PROTOCOL.md, the kanban, other agents).

At boot you also have identity.md (who you are) and HIVE_ROOT/PROTOCOL.md (the full coordination protocol). To message god or another agent, write ONE message JSON into $AGENT_DIR/outbox/ (schema in PROTOCOL.md). When finished, send god an "act":"done" outbox message with a substantive result summary.

2. Temporal skills — concrete date ranges, relative to now

When your task is time-scoped, resolve the dates instead of computing them by hand. Each skill prints inclusive civil dates (YYYY-MM-DD, your local timezone) and the half-open [startUtc, endExclusiveUtc) instants for timestamp queries. All are read-only (clock + stdout only; no writes, no network).

Named shortcuts (invoke directly):

Skill Range it resolves
/today, /yesterday the single civil day
/thisWeek, /lastWeek ISO week (Mon-start); this = Mon→today, last = prior full week
/last7Days, /last30Days rolling N-day window ending today
/thisMonth, /lastMonth this = 1st→today; last = prior full month
/thisQuarter, /lastQuarter this = quarter-start→today; last = prior full quarter
/thisYear, /lastYear this = Jan 1→today (YTD); last = prior full year

Read the full file on GitHub · 116 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 116 lines · 69 tokens per session scan A dad933f43076

Subscribe to this mod's changes

capabilities is a skill published in the GitHub repository chaitanyagiri/munder-difflin (6,221 stars, last pushed today), licensed MIT. It adds 69 tokens to every session and 1,449 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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