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claude-code-viewer AGENTS.md

claude-code-viewer AGENTS.md is an instructions file for Codex, OpenCode from d-kimuson/claude-code-viewer. It costs 1,507 tokens per session, scanned A, original, MIT.

A set of project instructions for an AI coding agent, including coding rules, test-first development, API conventions, and commit message guidance.

In plain words
What is it for?
Use it when working on the d-kimuson/claude-code-viewer project to guide implementation, testing, type checks, formatting, and commits.
Why use it?
It gives the agent the project's expectations before it changes code, reducing avoidable mistakes and inconsistent work.

Instructions file for CodexOpenCode

not rated 1.3k +1 16d ago A scan 1,507 tokens original MIT
View the source file d-kimuson/claude-code-viewer
Install

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.

agentmods
npx agentmods add instructions/d-kimuson/claude-code-viewer/agents-md
Clone the repo
git clone --depth 1 https://github.com/d-kimuson/claude-code-viewer

Made for: 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.

agentmods badge for claude-code-viewer AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/d-kimuson/claude-code-viewer/agents-md.svg)](https://agentmods.dev/instructions/d-kimuson/claude-code-viewer/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/d-kimuson/claude-code-viewer/agents-md"><img src="https://agentmods.dev/badge/instructions/d-kimuson/claude-code-viewer/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,507 This file is loaded in full into every session.
When invoked 1,507 The same file — it is already loaded in full.
Security scan A 1 finding. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.01507 $0.01507
Opus 5 $0.00754 $0.00754
Sonnet 5 $0.00301 $0.00301
Haiku 4.5 $0.00151 $0.00151

Measured 4d ago against content hash 32b5bbe52ce1, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

claude-code-viewer 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 4d 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.

- Use `Command.string` instead of `child_process`
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 187 lines

How it starts

The opening of the file, as written. The whole thing — 187 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Critical Rules (Read First)

Language:

  • Code, comments, and commit messages should be in English

NEVER:

  • Use as type casting in ANY context including test code (explain the problem to the user instead)
  • Use raw fetch or bypass TanStack Query for API calls
  • Run pnpm dev or pnpm start (dev servers)
  • Use node:fs, node:path, etc. directly (use Effect-TS equivalents)

ALWAYS:

  • Use Effect-TS for all backend side effects
  • Use Hono RPC + TanStack Query for all API calls
  • Follow TDD: write tests first, then implement
  • Run pnpm typecheck and pnpm fix before committing

Commit Message Rules

Conventional Commits format: type: description

Release Note Awareness:

  • Commit messages are included in release notes; write for users.

Type Selection:

Type Release Note Purpose
feat Features User-facing new feature
fix Bug Fixes User-impacting bug fix
chore, ci, build, refactor Excluded Internal changes

Critical: Use fix only for user-facing bugs. Internal fixes (linter errors, type errors, build scripts) must use chore.

Message Quality Examples:

  • Bad: fix: fix lingui error (internal issue)
  • Bad: feat: add button (too vague)
  • Good: feat: add dark mode toggle to settings
  • Good: fix: session list not updating after deletion
  • Good: chore: update lingui compiled messages

Project Overview

Claude Code Viewer reads Claude Code session logs directly from JSONL files (~/.claude/projects/) with zero data loss. It's a web-based client built as a CLI tool serving a Vite application.

Core Architecture:

  • Frontend: Vite + TanStack Router + React 19 + TanStack Query
  • Backend: Hono (standalone server) + Effect-TS (all business logic)
  • Data: Direct JSONL reads with strict Zod validation
  • Real-time: Server-Sent Events (SSE) for live updates

This project is designed with the philosophy of achieving both rapid feedback and code quality maintenance (passing checks = nearly guaranteed runtime correctness) by leveraging:

Read the full file on GitHub · 187 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.

  1. 4d ago First seen · 187 lines · 1,507 tokens per session scan A 32b5bbe52ce1

Subscribe to this mod's changes

claude-code-viewer AGENTS.md is an instructions file published in the GitHub repository d-kimuson/claude-code-viewer (1,278 stars, last pushed 16d ago), licensed MIT. It adds 1,507 tokens to every session, about $0.0075 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.

claudeclaude-code
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