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.
/plugin marketplace add Perseus-Computing-LLC/ledgernpx agentmods add plugins/perseus-computing-llc/ledger/claude-code-plugingit clone --depth 1 https://github.com/Perseus-Computing-LLC/ledgerGrade A, and why
ledger-metering 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.
What it actually says
{
"name": "ledger-metering",
"description": "Meter Claude Code token usage to your self-hosted Ledger ledger. Each turn's usage is metered at session end so you can see your spend and efficiency (API-equivalent value vs. actual cost) on the Ledger dashboard. Sends token metadata only — never transcript content.",
"version": "0.1.0",
"author": { "name": "Perseus Computing LLC", "url": "https://perseus.observer" },
"homepage": "https://github.com/Perseus-Computing-LLC/ledger-metering-plugin",
"repository": "https://github.com/Perseus-Computing-LLC/ledger-metering-plugin",
"license": "MIT",
"keywords": ["metering", "billing", "cost", "token-usage", "finops", "ledger"]
}
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 · 11 lines scan A 2ec5b76e2e63
ledger-metering is a plugin published in the GitHub repository Perseus-Computing-LLC/ledger (5 stars, last pushed 6d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.
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