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.
npx skills add ur-grue/autopunk-media-skills --skill source-credibility-briefgit clone --depth 1 https://github.com/ur-grue/autopunk-media-skillsWrote 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/ur-grue/autopunk-media-skills/source-credibility-brief)<a href="https://agentmods.dev/skills/ur-grue/autopunk-media-skills/source-credibility-brief"><img src="https://agentmods.dev/badge/skills/ur-grue/autopunk-media-skills/source-credibility-brief/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/ur-grue/autopunk-media-skills/source-credibility-brief"><img src="https://agentmods.dev/badge/skills/ur-grue/autopunk-media-skills/source-credibility-brief.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00038 | $0.02595 |
| Opus 5 | $0.00019 | $0.01298 |
| Sonnet 5 | $0.00008 | $0.00519 |
| Haiku 4.5 | $0.00004 | $0.00260 |
Grade A, and why
source-credibility-brief 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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 149 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Source Credibility Brief
What This Skill Does
Assesses the credibility of a source whose claims appear in a draft — expertise, track record, conflicts of interest, and the corroboration needed before publication.
When To Use This Skill
- A source is making significant claims in a story and you want a systematic assessment before deciding how prominently to feature them
- An editor has questioned the weight given to a source and you need to document why you trust (or should qualify) their testimony
- A source is operating outside their primary area of expertise and you need to assess how much authority to give their statements
- You are deciding whether a claim can stand on a single source or requires corroboration
What You Need To Provide
Required: The source's name, role or title, and the specific claims they are making in the article Optional: The source's employer or institutional affiliation; any known background on the source (publications, testimony, prior interviews); how the claim was communicated (on-record interview, background, leaked document, official statement); the story context
How the Assistant Approaches This
- Assesses the source's expertise relative to the specific claims being made — distinguishing between claimed credentials and demonstrated expertise in the relevant domain
- Reviews the source's track record for reliability: prior public statements, whether they have been cited accurately in other publications, and any history of retracted or corrected claims
- Identifies potential conflicts of interest — financial, professional, personal, or ideological — that could affect the source's account
- Recommends a corroboration threshold: whether the claim can be used on a single source, requires one additional corroboration, requires documentary evidence, or should not be published without independent verification
- Closes with a "Next Step" note: the most important corroboration step to take immediately (contact the named corroborating expert type, locate the study or document, or run statistics-fact-checker if the claims are numerical)
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago First seen · 149 lines · 38 tokens per session scan A 28c3146a7f41
source-credibility-brief is a skill published in the GitHub repository ur-grue/autopunk-media-skills (32 stars, last pushed 11d ago), licensed MIT. It adds 38 tokens to every session and 2,595 once invoked, about $0.0002 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 2026-09-04.
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