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 agentmods add skills/mathbullet/skills/documenting-with-sourcesnpx skills add mathbullet/skills --skill documenting-with-sourcesgit clone --depth 1 https://github.com/mathbullet/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/mathbullet/skills/documenting-with-sources)<a href="https://agentmods.dev/skills/mathbullet/skills/documenting-with-sources"><img src="https://agentmods.dev/badge/skills/mathbullet/skills/documenting-with-sources.svg" alt="Measured on agentmods" 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 | $0.00078 | $0.00625 |
| Opus 5 | $0.00039 | $0.00313 |
| Sonnet 5 | $0.00016 | $0.00125 |
| Haiku 4.5 | $0.00008 | $0.00063 |
Grade A, and why
documenting-with-sources 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 6d 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 — 41 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Documenting with Sources
Common conventions for writing Markdown documents that pull from outside sources. Apply to any deliverable that surfaces facts taken from elsewhere — survey reports, paper explainers, and similar.
Cite every factual claim
Every factual claim in the deliverable must carry a citation. A claim with no citation cannot be verified, and is worthless as a documented finding. If a claim cannot be tied to a source, mark it explicitly (e.g. "citation not confirmed"). Do not slip uncited claims in silently.
Reference format
- In-text references take the shape
[label (YYYY/MM), location]. How to fill thelabelslot (publication name, author short-form, position-only for the paper under review, etc.) is decided by the calling skill. - Do not use bare numeric references such as
[1]or[2]. Numbers alone force the reader to bounce between text and source list; readability drops. - For the formatting of quotation blocks themselves (code-block fencing, original-and-translation pairing, where to place the source reference, anti-patterns), follow the
writing-quotationskill. Readwriting-quotationbefore drafting.
Quotation vs prose
- Keep quotations and prose (the writer's own summary or interpretation) visually and structurally separate. Even when not quoting, write in a way that prevents the source's claim and the writer's interpretation from blending.
- When quoting a source written in a language other than the writer's working language, place the translation alongside the original inside the same code block (see
writing-quotation).
No fabricated associations or interpretations
Do not write interpretations, speculation, or associations that the source itself does not contain.
- Do not invent connections such as "this relates to X", "this could be applied to Y", or "this suggests Z" when the source does not say so.
- Do not import context from the surrounding conversation or the calling project into the body of the document. Descriptions of a source must stay within the source's own content.
- Good: "Main criticism: even with flipped labels, accuracy does not always drop, and the text-gradient is mathematically distinct from classical gradient descent" (states what the source actually says).
- Bad: "Relation to AI writing improvement: feedback-based improvement is mathematically different from gradient descent..." (the source does not say this; the connection is fabricated from conversation context).
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.
- 6d ago First seen · 41 lines · 78 tokens per session scan A 5a8c6545790e
documenting-with-sources is a skill published in the GitHub repository mathbullet/skills (119 stars, last pushed yesterday), licensed MIT. It adds 78 tokens to every session and 625 once invoked, about $0.0004 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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