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 instructions/yamadashy/repomix/copilot-instructionsgit clone --depth 1 https://github.com/yamadashy/repomixWhat 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 | $0.00007 | $0.00007 |
| Opus 5 | $0.00003 | $0.00003 |
| Sonnet 5 | $0.00001 | $0.00001 |
| Haiku 4.5 | $0.00001 | $0.00001 |
Grade A, and why
repomix copilot-instructions.md 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 yesterday.
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.
Copies of this mod
2 near-identical copies found in the catalogue:
- repomix AGENTS.md — 100% identical, 2 lines differ
- repomix CLAUDE.md — 100% identical, 2 lines differ
What it actually says
../.agents/rules/base.md
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.
- yesterday First seen · 1 lines · 7 tokens per session scan A 5ed0d0f9a56c
repomix copilot-instructions.md is an instructions file published in the GitHub repository yamadashy/repomix (28,125 stars, last pushed 2d ago), licensed MIT. It adds 7 tokens to every session, about $0.0000 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.
Other instructions, from other repositories
Prompt-Engineering-Guide CLAUDE.md
Instructions for dair-ai/Prompt-Engineering-Guide, covering prompt engineering guide, project overview, project learnings, notes & content and git workflow.
product-manager-prompts AGENTS.md
AGENTS.md instructions for deanpeters/product-manager-prompts, covering agents.md, mission, primary constraint: pedagogy first, repository map and intent and prompt authoring contract.
product-manager-prompts CLAUDE.md
Claude Code instructions for deanpeters/product-manager-prompts, covering claude.md, what this repo is, interaction modes and the generative guidance pattern, coupling discipline and key constraints.
langgraph AGENTS.md
Instructions for langchain-ai/langgraph, covering agents instructions, corridor security analysis, libraries and dependency map.
plano CLAUDE.md
Instructions for katanemo/plano, covering claude.md, build & test commands, rust — wasm plugins (must target wasm32-wasip1), rust — brightstaff binary (native target) and rust — tests, format, lint.
gptme AGENTS.md
Instructions for gptme/gptme, covering agent instructions for gptme, git workflow, code style, testing and project structure.