What is claude-code-statusline AGENTS.md?

A project instruction document for a small Node.js status-line tool and its optional hooks. It explains the project's files, no-dependency rule, contributor rules, and how related instruction files stay synchronised.

Use it when modifying the status line, its session hooks, Markdown synchronisation, or Git status checks.

It helps coding agents preserve the tool's single-file design and keep CLAUDE.md, AGENTS.md, and GEMINI.md consistent.

How ilia-pluzhnikov/claude-code-statusline configures Claude Code and

Reuse

Borrowing it

Nothing to install: this file belongs to ilia-pluzhnikov/claude-code-statusline. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/ilia-pluzhnikov/claude-code-statusline/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/ilia-pluzhnikov/claude-code-statusline

Made for: Claude Code, Codex, OpenCode.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ilia-pluzhnikov/claude-code-statusline/agents-md.svg)](https://agentmods.dev/instructions/ilia-pluzhnikov/claude-code-statusline/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/ilia-pluzhnikov/claude-code-statusline/agents-md"><img src="https://agentmods.dev/badge/instructions/ilia-pluzhnikov/claude-code-statusline/agents-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 1,089 This file is loaded in full into every session.

When invoked 1,089 The same file — it is already loaded in full.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.01089	$0.01089
Opus 5	$0.00544	$0.00544
Sonnet 5	$0.00218	$0.00218
Haiku 4.5	$0.00109	$0.00109

Measured 8d ago against content hash 4cbe4d598356, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

claude-code-statusline 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 8d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- **No dependencies.** Everything is built-in Node.js (`fs`, `path`, `os`, `child_process`). Don't add a `package.json` with deps. If a feature needs an npm package, the answer is probably "the feature doesn't belong her

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

claude-code-statusline CLAUDE.md — 100% identical, 2 lines differ
claude-code-statusline GEMINI.md — 100% identical, 2 lines differ

AGENTS.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

claude-code-statusline

Sync: Any changes to this file must also be applied to CLAUDE.md and GEMINI.md.

A single-file Node.js statusline for Claude Code, plus three optional companion hooks that keep CLAUDE.md / AGENTS.md / GEMINI.md in sync and surface git state at session start.

Project shape

statusline.js — entry point. Reads JSON from stdin (model, workspace, session_id, context_window, rate_limits) and writes one ANSI-coloured line to stdout.
optional-hooks/md-sync-check.js — SessionStart drift detector for the CLAUDE/AGENTS/GEMINI trio.
optional-hooks/sync-md.js — PostToolUse mirror: writes CLAUDE.md → AGENTS.md + GEMINI.md, swapping the Sync: line per file.
optional-hooks/github-sync-check.js — SessionStart git status + cached origin divergence + background fetch for next session.

Rules for contributors (and AI agents)

No dependencies. Everything is built-in Node.js (fs, path, os, child_process). Don't add a package.json with deps. If a feature needs an npm package, the answer is probably "the feature doesn't belong here".
Single-file per concern. statusline.js is one file. Each hook is one file. No build step, no transpiler.
Exit 0 on any error. A broken hook must never block the user's tool call. Wrap risky logic in try/catch and process.exit(0) on failure. Same for statusline.js — empty output is acceptable, a thrown error that breaks Claude Code's UI is not.
Hot-path budget. statusline.js is invoked on every status refresh. No network, no git fetch on the hot path. Use bridge files in os.tmpdir() and background spawn(detached: true).unref() for anything that takes >100ms.
Hide on happy path. Segments only appear when they have something to say. 0 uncommitted is invisible. ↑0 push is invisible. Add new segments with the same discipline.
Cross-platform. Use path.join, os.homedir(), windowsHide: true on every execSync. No hard-coded / or \. No assumptions about which shell.
Avoid TUI-incompatible ANSI attributes. Blink (\x1b[5m), strikethrough, and underline-color extensions are silently dropped by Ink-based TUIs (Claude Code) and disabled by default in modern terminals. For attention without animation, use bold + bright color, inverse video (\x1b[7m), or a background-color badge. Stick to widely-supported codes: 30-37 (fg), 40-47 (bg), 1 (bold), 2 (dim), 7 (inverse), 38;2;R;G;B (truecolor).

Read the full file on GitHub · 56 lines

Changes

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.

8d ago First seen · 56 lines · 1,089 tokens per session scan A 4cbe4d598356

Subscribe to this mod's changes

claude-code-statusline AGENTS.md is an instructions file published in the GitHub repository ilia-pluzhnikov/claude-code-statusline (112 stars, last pushed 18d ago), licensed MIT. It adds 1,089 tokens to every session, about $0.0054 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Claude Code anthropic claude dotfiles nodejs statusline

codex AGENTS.md

AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.

openai/codex · 5,182 tokens

vscode buildNext.instructions.md

Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).

microsoft/vscode · 6,785 tokens

claude-code-statusline: Instructions file for Claude Code