Borrowing it
Nothing to install: this file belongs to eternal-roman/ledger. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/eternal-roman/ledger/main/CLAUDE.mdgit clone --depth 1 https://github.com/eternal-roman/ledgerWrote 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/instructions/eternal-roman/ledger/claude-md)<a href="https://agentmods.dev/instructions/eternal-roman/ledger/claude-md"><img src="https://agentmods.dev/badge/instructions/eternal-roman/ledger/claude-md.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 | $0.00148 | $0.00148 |
| Opus 5 | $0.00074 | $0.00074 |
| Sonnet 5 | $0.00030 | $0.00030 |
| Haiku 4.5 | $0.00015 | $0.00015 |
Grade A, and why
ledger CLAUDE.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 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.
What it actually says
Ledger development
Kernel: AGENTS.md, skills/ledger/SKILL.md. Contribute: CONTRIBUTING.md. Protocol: docs/CORE-PROTOCOL.md.
- Plan/TDD if those host skills exist.
- Money only through the kernel + artifact.
- Windows:
pwsh-shell-guardbefore any terminal.Select-Objectto truncate..\scripts\with-git-bash.cmd "…"for git/signing. /ledger-verifythen ship.
Never bypass invariants.
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 · 11 lines · 148 tokens per session scan A cd2eaaeb5351
ledger CLAUDE.md is an instructions file published in the GitHub repository eternal-roman/ledger (1 stars, last pushed yesterday), licensed MIT. It adds 148 tokens to every session, about $0.0007 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 2026-08-31.
Other instructions, from other repositories
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spec-kit AGENTS.md
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