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 marcusrbrown/systematic --skill pr-attachmentsgit clone --depth 1 https://github.com/marcusrbrown/systematicWrote 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/marcusrbrown/systematic/pr-attachments)<a href="https://agentmods.dev/skills/marcusrbrown/systematic/pr-attachments"><img src="https://agentmods.dev/badge/skills/marcusrbrown/systematic/pr-attachments/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/marcusrbrown/systematic/pr-attachments"><img src="https://agentmods.dev/badge/skills/marcusrbrown/systematic/pr-attachments.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 | $0.00060 | $0.12320 |
| Opus 5.5 | $0.00024 | $0.04928 |
| Sonnet 5.5 | $0.00012 | $0.02464 |
| Haiku 4.5 | $0.00006 | $0.01232 |
Grade A, and why
pr-attachments 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 14d 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 — 765 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PR Attachments
Publish local images as commit-pinned embeds in a managed ## Demo section of a pull request description. Confirm that every embed serves an image before the description is written.
The images are committed under docs/evidence/<topic>/ on the PR head branch and linked by commit SHA. Cleanup removes them from the branch once the PR is done. This skill does not capture screenshots.
The managed section starts at a ## Demo heading at column 0. A ## Demo line that is indented, or that sits inside a code fence, a quote, a comment or a <pre>, <script>, <style> or <textarea> block, is text and not the section. The helper never replaces or copies it, and it never removes a line outside the section.
The helper replaces or copies an existing Demo section only when every non-blank line under its heading is one this skill writes: an image embed () in the raw or the blob form. A heading, a fence, HTML, a table or free prose under the heading means the section is not the managed one, or its end was misjudged. The helper then changes nothing and reports unexpected-section-content.
| Mode | Trigger | Writes the description |
|---|---|---|
| PR mode | An open PR and image paths | Yes |
| Embed mode | mode:embed and image paths |
No. Returns a Demo file and a status line |
| Carry mode | mode:carry, old= and new= |
No. Edits the new body file in place and returns a status line |
| Re-pin mode | An open PR and no paths | Only when a pin is stale |
| Cleanup | Offered at the end of PR mode and Re-pin mode | No. Removes the evidence files from the branch |
Preconditions
git, andghsigned in with push access to the head repository.- The helper needs node 18+ on PATH. Check
node --versiononce. Without it, stop. - Carry mode needs only node. The other modes also need the repository root:
git rev-parse --show-prefixprints nothing there. - Run from the repository root.
- Shell state does not persist between tool calls. Fill every placeholder in angle brackets with a real value in every block.
- Every block that calls the helper starts with the same anchor lines. Reuse them verbatim. Set
SKILL_DIRto the skill directory stated when this skill loads.
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.
- 14d ago First seen · 765 lines · 60 tokens per session scan A 2e0e39c1b0f3
pr-attachments is a skill published in the GitHub repository marcusrbrown/systematic (28 stars, last pushed yesterday), licensed MIT. It adds 60 tokens to every session and 12,320 once invoked, about $0.0002 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 2026-10-24.
pr-attachments compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| pr-attachmentsmarcusrbrown/systematic | Skill | 28 | yesterday | MIT | A | 60 | Claude Code |
| commit-prZaxbyHub/opencode-swarm | Skill | 518 | yesterday | MIT | A | 100 | Codex |
| re0-gitLilMGenius/paperthin | Skill | 1.4k | 4d ago | MIT | A | 46 | Claude Code |
| cmux-testingmanaflow-ai/cmux | Skill | 29k | yesterday | none | A | 37 | Codex |
| at-daily-logkairyou/agent-tools | Skill | 176 | 2d ago | MIT | A | 48 | Claude Code |
| at-commitkairyou/agent-tools | Skill | 176 | 2d ago | MIT | A | 33 | Claude Code |
| contributingZaxbyHub/opencode-swarm | Skill | 518 | yesterday | MIT | A | 44 | Codex |