Fact Checking

What it does

When your agent uses it

• Verifying technical content
• Checking references
• Validating API endpoints
• Performing quality assurance on deliverables

Example prompts

• “/fact-checking”

Requirements

• Compatibility (from SKILL.md): Requires access to external references and APIs

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

1. 1Ask: "What evidence supports this? What would disprove it?"
2. 2Generate counter-hypotheses and test them against available data
3. 3Verify URLs, package names, API endpoints, and external references actually exist
4. 4Flag confidence levels: ✅ Verified, ⚠️ Unverified, ❌ Contradicted

What it can do on your machine

Read from SKILL.md and the folder at commit d2364df. 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.

• Compatibility

  Requires access to external references and APIs

  From compatibility in the SKILL.md frontmatter.

Context cost

Fact Checking loads about 503 tokens when it runs. Until then it costs about 52 tokens; SKILL.md has 134 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~52

When it runs · the whole SKILL.md, loaded when a task matches

~503

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

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 d2364df, republished under its MIT licence (© bradygaster). 134 words, ~503 tokens.

name

fact-checking

description

Review and validate claims using counter-hypothesis testing. Use when verifying technical content, checking references, validating API endpoints, or performing quality assurance on deliverables.

compatibility

Requires access to external references and APIs

license

MIT

metadata.author

squad

metadata.version

1.0.0

metadata.domain

quality, verification

metadata.confidence

low

metadata.last_validated

2026-03-01

### Fact Check — {deliverable name}
**Claims verified:** {count}
**Issues found:** {count}

| # | Claim | Status | Evidence/Notes |
|---|-------|--------|---------------|
| 1 | {claim} | ✅/⚠️/❌ | {supporting or contradicting evidence} |

**Counter-hypotheses tested:**
- {alternative explanation + result}

**Verdict:** {PASS / PASS WITH NOTES / NEEDS REVISION}

Challenger — fact-check {agent}'s claim: "{claim}"
Cite evidence for every verdict. Max 3 investigation cycles.

© 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 .squad-templates/skills/fact-checking of bradygaster/squad.

Open the folder on GitHubat commit d2364df