token-usage

token-usage is a skill for Claude Code from saidwivedi/research-skills. It costs 30 tokens per session (145 once invoked), scanned A, original, MIT.

A command that shows how many AI tokens were used in each session over a chosen number of days. Tokens are the small pieces of text that AI systems process.

In plain words
What is it for?
Run it to view the default seven-day usage summary or provide a number to review a different period.
Why use it?
It makes session-by-session usage visible instead of requiring you to inspect logs or estimate consumption yourself.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter. Also seen: reads .claude/ paths.

Part of the token-usage plugin — 1 skill shipped together

Good fit Run it to view the default seven-day usage summary or provide a number to review a different period.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/saidwivedi/research-skills/token-usage
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.

Any agent
npx skills add saidwivedi/research-skills --skill token-usage
Clone the repo
git clone --depth 1 https://github.com/saidwivedi/research-skills

Made for: Claude Code.

Or install token-usage, the plugin that ships this one along with the rest of its 1 skill.

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 token-usage

README.md
[![agentmods](https://agentmods.dev/badge/skills/saidwivedi/research-skills/token-usage/github.svg)](https://agentmods.dev/skills/saidwivedi/research-skills/token-usage)
Your own site
<a href="https://agentmods.dev/skills/saidwivedi/research-skills/token-usage"><img src="https://agentmods.dev/badge/skills/saidwivedi/research-skills/token-usage/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.

agentmods 80×15 button for token-usage

Your own site · 80×15
<a href="https://agentmods.dev/skills/saidwivedi/research-skills/token-usage"><img src="https://agentmods.dev/badge/skills/saidwivedi/research-skills/token-usage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 145 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00030 $0.00145
Opus 5 $0.00015 $0.00072
Sonnet 5 $0.00006 $0.00029
Haiku 4.5 $0.00003 $0.00015

Measured 9d ago against content hash 7fc1c82c43fa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

token-usage 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (show-usage.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/token-usage/skills/token-usage/SKILL.md · 26 lines

What it actually says

Token Usage Tracker

Run the token usage summary script and display results to the user.

python3 ~/.claude/skills/token-usage/show-usage.py $ARGUMENTS

If no argument is provided, default is 7 (last 7 days).

Show the full output table to the user exactly as printed.

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 26 lines · 30 tokens per session scan A 7fc1c82c43fa

Subscribe to this mod's changes

token-usage is a skill published in the GitHub repository saidwivedi/research-skills (40 stars, last pushed 2mo ago), licensed MIT. It adds 30 tokens to every session and 145 once invoked, about $0.0002 per session on Opus 5. 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 2026-08-30.

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