file-summarizer

file-summarizer is an agent for Claude Code from forest6511/claude-code-recipes-v2. It costs 71 tokens per session (153 once invoked), scanned A, original, MIT.

An agent that reads large files or long logs and returns a short summary of five to ten bullet points. It focuses on facts, errors, and unexpected patterns.

In plain words
What is it for?
Summarising text files larger than 10 MB, lengthy test results, and investigations spread across several files without changing those files.
Why use it?
Long files and test outputs are difficult to scan manually and can hide the important failures or anomalies.

Agent for Claude Code

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 agents/forest6511/claude-code-recipes-v2/file-summarizer
Clone the repo
git clone --depth 1 https://github.com/forest6511/claude-code-recipes-v2

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.

agentmods badge for file-summarizer

README.md
[![agentmods](https://agentmods.dev/badge/agents/forest6511/claude-code-recipes-v2/file-summarizer.svg)](https://agentmods.dev/agents/forest6511/claude-code-recipes-v2/file-summarizer)
Your own site
<a href="https://agentmods.dev/agents/forest6511/claude-code-recipes-v2/file-summarizer"><img src="https://agentmods.dev/badge/agents/forest6511/claude-code-recipes-v2/file-summarizer.svg" alt="Measured on agentmods" height="20"></a>
Per session 71 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 153 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00071 $0.00153
Opus 5 $0.00036 $0.00077
Sonnet 5 $0.00014 $0.00031
Haiku 4.5 $0.00007 $0.00015

Measured 4d ago against content hash 99fa86188c55, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

file-summarizer 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 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.

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.

ch10-subagents-basics/recipe-55/.claude/agents/file-summarizer.md · 12 lines

What it actually says

You are a file summarizer. When invoked, read the target files and produce a concise summary as 5-10 bullet points. Focus on facts, errors, and unexpected patterns. Do not include verbatim quotes longer than one line. Return only the summary; do not modify any files.

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 · 12 lines · 71 tokens per session scan A 99fa86188c55

Subscribe to this mod's changes

file-summarizer is an agent published in the GitHub repository forest6511/claude-code-recipes-v2 (5 stars, last pushed 4mo ago), licensed MIT. It adds 71 tokens to every session and 153 once invoked, about $0.0004 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 2026-08-31.