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Agent skill

Action Skill Contracts

by bradygaster in bradygaster/squad

Author deterministic skills for operations that change state or invoke external tools

MITAuto-check passed

Install Action Skill Contracts

skills CLI
$ npx skills add bradygaster/squad --skill action-skill-contracts -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install bradygaster/squad action-skill-contracts --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/bradygaster/squad.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.copilot/skills/action-skill-contracts .claude/skills/action-skill-contracts && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
action-skill-contracts
GitHub stars
3.3k
Token cost
~429 tokens
SKILL.md length
184 words
Files
1
Skills in repo
31
Repo updated
First seen
Licence
MIT

At a glance

Author deterministic skills for operations that change state or invoke external tools

  • SKILL.md covers Context, Patterns, Examples and Anti-Patterns
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Action Skill Contracts is an agent skill from bradygaster/squad. Author deterministic skills for operations that change state or invoke external tools

Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Squad: AI agent teams for any project. The licence is MIT.

Example prompts

  • “/action-skill-contracts”

What it can do on your machine

Read from SKILL.md and the folder at commit 71818eb. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Action Skill Contracts loads about 429 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 184 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~27
When it runs · the whole SKILL.md, loaded when a task matches
~429

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from bradygaster/squad at commit 71818eb, republished under its MIT licence (© bradygaster). 184 words, ~429 tokens.

Download SKILL.mdSave it as .claude/skills/action-skill-contracts/SKILL.md (or your agent's skills folder).
name
action-skill-contracts
description
Author deterministic skills for operations that change state or invoke external tools
domain
prompt-architecture, operations
confidence
high
source
retained prompt-architecture lessons reconciled with current skill conventions

Context

Use this skill when authoring or revising a skill that can mutate files, state, repositories, or external systems. Informational reference skills need not carry operational ceremony.

Patterns

  • Start with an explicit ## SCOPE: activation conditions, allowed targets, and exclusions.
  • Provide an ordered, deterministic workflow. State required inputs, the intended side effect, and the exact validation after each consequential operation.
  • Define STOP conditions for missing prerequisites, ambiguous scope, failed verification, and unavailable tools. A failed precondition must not look like success.
  • Point to a current canonical implementation or workflow when a procedure depends on repository behavior; do not copy volatile values into prose.
  • Keep one skill focused on one operational boundary. Link to related skills rather than combining unrelated governance, release, and documentation procedures.

Examples

archival-integrity defines a verified append-before-trim transaction. gh-aw-enlistment limits mutations through an explicit allowlist and ends with strict compilation.

Anti-Patterns

  • Vague verbs such as “handle,” “ensure,” or “fix” without an observable success condition
  • Side effects that proceed after a failed validation
  • Treating a dated incident workaround as a permanent procedure without reconciling source
  • Adding action ceremony to a purely explanatory skill

© bradygaster, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .copilot/skills/action-skill-contracts of bradygaster/squad.

Open the folder on GitHubat commit 71818eb

Compare with similar skills

Action Skill Contracts next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Action Skill Contracts compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Action Skill Contracts this skillbradygaster/squad3.3k—~429Automated safety check: PassMIT
Smart Contract Upgrade Governancesickn33/agentic-awesome-skills47k1 repos~1.4kAutomated safety check: PassMIT
Hermes Agent Skill AuthoringNousResearch/hermes-agent252k—~3.6kAutomated safety check: PassMIT
Soroban Contract Auditsickn33/agentic-awesome-skills47k1 repos~1.4kAutomated safety check: PassMIT
ActionsJetBrains/intellij-community21k—~341Automated safety check: PassCustom licence
Configuring Oauth2 Authorization Flowmukul975/Anthropic-Cybersecurity-Skills34k—~1.7kAutomated safety check: PassApache-2.0

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Questions about Action Skill Contracts

What does Action Skill Contracts do?

Author deterministic skills for operations that change state or invoke external tools. Action Skill Contracts is an agent skill from bradygaster/squad.

How do I install Action Skill Contracts in Claude Code?

Run `npx skills add bradygaster/squad --skill action-skill-contracts -a claude-code`. Or copy the skill folder (.copilot/skills/action-skill-contracts in bradygaster/squad) into .claude/skills/action-skill-contracts in your project. Claude Code loads it when a task matches its description.

How do I install Action Skill Contracts in Codex?

Run `npx skills add bradygaster/squad --skill action-skill-contracts -a codex`. Or copy the skill folder (.copilot/skills/action-skill-contracts in bradygaster/squad) into .agents/skills/action-skill-contracts in your project. Codex loads it when a task matches its description.

Can I use Action Skill Contracts in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add bradygaster/squad --skill action-skill-contracts -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/action-skill-contracts, .gemini/skills/action-skill-contracts, .github/skills/action-skill-contracts and .opencode/skills/action-skill-contracts in your project.

What does Action Skill Contracts need to run?

SKILL.md names no scripts, command-line tools or credentials: Action Skill Contracts is instructions for the agent only.

Does Action Skill Contracts access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Action Skill Contracts safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Action Skill Contracts use?

Action Skill Contracts is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Action Skill Contracts use?

About 429 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Action Skill Contracts?

Skills that share tags, products or a category with Action Skill Contracts: Smart Contract Upgrade Governance (sickn33/agentic-awesome-skills, 47k stars), Hermes Agent Skill Authoring (NousResearch/hermes-agent, 252k stars), Soroban Contract Audit (sickn33/agentic-awesome-skills, 47k stars) and Actions (JetBrains/intellij-community, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Action Skill Contracts?

bradygaster (a GitHub user) maintains it in bradygaster/squad, which has 3,259 GitHub stars. The repository holds 31 skills in this directory. The repository was last updated on October 9, 2026.

Source: bradygaster/squad on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.