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/tgpski/leather/agents-mdgit clone --depth 1 https://github.com/TGPSKI/leatherWhat 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 | $0.02738 | $0.02738 |
| Opus 5 | $0.01369 | $0.01369 |
| Sonnet 5 | $0.00548 | $0.00548 |
| Haiku 4.5 | $0.00274 | $0.00274 |
Grade A, and why
leather AGENTS.md scanned grade A with 1 finding 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 2d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
large PR threads, logs, diffs, and curl responses to be inspected without The source is not reproduced here
Licensed GPL-3.0
The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 2d ago First seen · 178 lines · 2,738 tokens per session scan A f7a949f5c084
leather AGENTS.md is an instructions file published in the GitHub repository TGPSKI/leather (17 stars, last pushed 24d ago), licensed GPL-3.0. It adds 2,738 tokens to every session, about $0.0137 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
ken CLAUDE.md
Instructions for townsendmerino/ken, covering claude.md, what this is, repository ownership (read this first), commands and embedding parity & golden fixtures (now in aikit).
mosaic AGENTS.md
Instructions for hexxla/mosaic, covering project instructions, your responsibilities as an agent, hexagonal architecture, core concepts and layer responsibilities & rules.
symbolpeek-mcp CLAUDE.md
Instructions for pioner92/symbolpeek-mcp: SymbolPeek's whole value is context economy: an agent gets one symbol, not the file. The rule applies to the code too — including this file, which loads into every session, so hold it to its own bar.
rocketship AGENTS.md
Instructions for rocketship-ai/rocketship, covering agents.md, rocketship cloud v1 snapshot, architecture overview, development commands and build and install.
rocketship CLAUDE.md
Instructions for rocketship-ai/rocketship, covering claude.md, rocketship cloud v1 snapshot (for agents), architecture overview, development commands and build and install.
skl AGENTS.md
Instructions for alexastrum/skl, covering 🤖 agent configurations & discovery, ⚡ discovery mechanics, 🔗 symlink routing, 🛠️ multi-platform compilation & path mappings and multi-platform ci builds.