What is token-dashboard CLAUDE.md?

Project instructions for a local dashboard that tracks Claude Code usage, costs, sessions, prompts, projects, skills, and related analytics. Claude Code is a coding assistant, and the dashboard reads its local JSONL transcript files and stores results in SQLite, a local database format.

Use it when working on the Token Dashboard, including its Python scanner and server, JSON APIs, live updates, or vanilla JavaScript interface.

It gives an agent the project context, architecture, supported platforms, and checks needed when editing the repository. This reduces the chance of changes conflicting with the existing dashboard design.

How nateherkai/token-dashboard configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to nateherkai/token-dashboard. 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/nateherkai/token-dashboard/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/nateherkai/token-dashboard

Made for: Claude Code.

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/nateherkai/token-dashboard/claude-md/github.svg)](https://agentmods.dev/instructions/nateherkai/token-dashboard/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/nateherkai/token-dashboard/claude-md"><img src="https://agentmods.dev/badge/instructions/nateherkai/token-dashboard/claude-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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/nateherkai/token-dashboard/claude-md"><img src="https://agentmods.dev/badge/instructions/nateherkai/token-dashboard/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 787 This file is loaded in full into every session.

When invoked 787 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	$0.00787	$0.00787
Opus 5.5	$0.00315	$0.00315
Sonnet 5.5	$0.00157	$0.00157
Haiku 4.5	$0.00079	$0.00079

Measured 2mo ago against content hash b01faad9b455, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

token-dashboard CLAUDE.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 2mo 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 http://127.0.0.1:8080/api/overview # sanity-check an endpoint

CLAUDE.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for Claude Code when working in this repository.

Project overview

Token Dashboard — a local dashboard for tracking Claude Code token usage, costs, and session history. Reads the JSONL transcripts Claude Code writes to ~/.claude/projects/ and turns them into per-prompt cost analytics, tool/file heatmaps, subagent attribution, cache analytics, project comparisons, and a rule-based tips engine.

Inspired by phuryn/claude-usage but diverges in UI (vanilla JS + ECharts, dark theme, hash router, SSE refresh) and scope (expensive-prompt drill-down, skills view, tips engine, streaming-snapshot dedup). See docs/inspiration.md for the original's feature set and known limitations.

Status

Working codebase. 68 Python unit tests (python3 -m unittest discover tests). Seven UI tabs wired up (Overview, Prompts, Sessions, Projects, Skills, Tips, Settings). Runs on macOS, Windows, and Linux.

Architecture

cli.py → token_dashboard/scanner.py → ~/.claude/token-dashboard.db (SQLite)
token_dashboard/server.py exposes JSON APIs (/api/*) + SSE stream (/api/stream) + static frontend (web/)
web/ is vanilla JS, no build step — hash router + ECharts

Data source

Claude Code writes one JSONL file per session to ~/.claude/projects/<project-slug>/<session-id>.jsonl. Each line is a message record; usage fields live at message.usage and model identifier at message.model. The scanner is incremental — it tracks each file's mtime and byte offset in the files table and only reads new bytes on subsequent scans.

Conventions

Fully local. No telemetry, no remote calls for user data. Tests run offline.
Stdlib only. No pip install. If a new feature needs a third-party library, argue for it first — we're willing to pay ergonomics cost to keep install friction at zero.
SQLite parameter binding always. Any f-string in a SQL statement must interpolate only internal, caller-controlled values (column names, placeholder lists). User-reachable values go through ?.
Small files with clear responsibilities. If a file grows past ~400 lines or accretes three distinct concerns, split it.
Streaming-snapshot dedup. When adding scanner logic that joins the messages table, remember (session_id, message_id) is the dedup key, not uuid. See scanner._evict_prior_snapshots and the migration note in db._migrate_add_message_id.

Read the full file on GitHub · 48 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.

2mo ago First seen · 48 lines · 787 tokens per session scan A b01faad9b455

Subscribe to this mod's changes

token-dashboard CLAUDE.md is an instructions file published in the GitHub repository nateherkai/token-dashboard (764 stars, last pushed 6mo ago), licensed MIT. It adds 787 tokens to every session, about $0.0031 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.

Analytics and metrics

token-dashboard CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
token-dashboard CLAUDE.mdnateherkai/token-dashboard	Instructions file	764	6mo ago	MIT	A	787	Claude Code
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next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
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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

token-dashboard: Instructions file for Claude Code