bradygaster/squad is a tool that creates a human-directed team of AI development agents inside a project repository through GitHub Copilot. Developers use it to delegate work among persistent specialists such as frontend, backend, testing, and lead agents while retaining responsibility for decisions and review. The catalogue entries are the skills, agents, and instructions that define and coordinate those team members.
Borrowing it
Nothing to install: this file belongs to bradygaster/squad. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/bradygaster/squad/dev/.copilot/skills/action-skill-contracts/SKILL.mdgit clone --depth 1 https://github.com/bradygaster/squadWrote 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.
[](https://agentmods.dev/skills/bradygaster/squad/action-skill-contracts)<a href="https://agentmods.dev/skills/bradygaster/squad/action-skill-contracts"><img src="https://agentmods.dev/badge/skills/bradygaster/squad/action-skill-contracts/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/bradygaster/squad/action-skill-contracts"><img src="https://agentmods.dev/badge/skills/bradygaster/squad/action-skill-contracts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00018 | $0.00328 |
| Opus 5.5 | $0.00007 | $0.00131 |
| Sonnet 5.5 | $0.00004 | $0.00066 |
| Haiku 4.5 | $0.00002 | $0.00033 |
Grade A, and why
action-skill-contracts 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 1mo 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.
What it actually says
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
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.
- 1mo ago First seen · 37 lines · 18 tokens per session scan A 788d0e0697a3
action-skill-contracts is a skill published in the GitHub repository bradygaster/squad (3,295 stars, last pushed today), licensed MIT. It adds 18 tokens to every session and 328 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-12.
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