Borrowing it
Nothing to install: this file belongs to peterjthomson/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/peterjthomson/ledger/master/AGENTS.mdgit clone --depth 1 https://github.com/peterjthomson/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/peterjthomson/ledger/agents-md)<a href="https://agentmods.dev/instructions/peterjthomson/ledger/agents-md"><img src="https://agentmods.dev/badge/instructions/peterjthomson/ledger/agents-md/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/instructions/peterjthomson/ledger/agents-md"><img src="https://agentmods.dev/badge/instructions/peterjthomson/ledger/agents-md.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 | $0.02212 | $0.02212 |
| Opus 5.5 | $0.00885 | $0.00885 |
| Sonnet 5.5 | $0.00442 | $0.00442 |
| Haiku 4.5 | $0.00221 | $0.00221 |
Grade A, and why
ledger 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 1mo 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.
curl -s http://127.0.0.1:9222/json How it starts
The opening of the file, as written. The whole thing — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
This file helps AI assistants understand and work with the Ledger codebase.
Project Overview
Ledger is a macOS desktop app for viewing git branches, worktrees, and pull requests. Built with Electron + React + TypeScript.
Quick Facts
| Aspect | Details |
|---|---|
| Type | Electron desktop app |
| Platform | macOS (Apple Silicon) |
| Language | TypeScript (strict mode) |
| UI | React 19 + custom CSS |
| Git | simple-git library |
| PRs | GitHub CLI (gh) |
| Tests | Playwright E2E |
| Build | electron-vite + electron-builder |
Key Files to Know
lib/main/main.ts # IPC handlers, app lifecycle
lib/services/ # Git operations as pure functions (branch, commit, stash, etc.)
lib/services/codegraph/ # Code dependency graph parsing (PHP, Ruby, TypeScript)
lib/conveyor/ # Typed IPC with Zod validation (schemas, handlers, APIs)
lib/preload/preload.ts # API exposed to renderer
app/app.tsx # Main React component (large)
app/styles/app.css # All styling (large)
app/types/electron.d.ts # TypeScript types for IPC
app/components/ # UI components (panels, canvas, window)
resources/scripts/ # External parser scripts (PHP, Ruby)
Common Tasks
Adding a new git operation
- Add pure function to appropriate service in
lib/services/(e.g.,branch-service.ts) - Add Zod schema in
lib/conveyor/schemas/ - Add handler in
lib/conveyor/handlers/ - Add API method in
lib/conveyor/api/ - Call via
window.conveyor.*from renderer
Adding UI elements
Main UI is in app/app.tsx. Components are in app/components/:
panels/editor/- Editor panels (BranchDetail, PRReview, Staging, etc.)panels/viz/- Visualization panels (GitGraph, ERD, CodeGraph)panels/viz/codegraph/- Code dependency graph visualizationcanvas/- Canvas layout systemwindow/- Window chrome (Titlebar, menus)
Styling in app/styles/app.css uses CSS variables for theming.
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.
- 1mo ago Changed · +1 lines · +83 tokens per session a7c0570e40de
- 2mo ago First seen · 266 lines · 2,129 tokens per session scan A fa5b1b796e18
ledger AGENTS.md is an instructions file published in the GitHub repository peterjthomson/ledger (327 stars, last pushed 1mo ago), licensed MIT. It adds 2,212 tokens to every session, about $0.0088 per session on Opus 5.5. 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.
ledger AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| ledger AGENTS.mdpeterjthomson/ledger | Instructions file | 327 | 1mo ago | MIT | A | 2,212 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |