read-file

read-file is a skill for Claude Code, Codex from stephen94125/peon-lib. It costs 41 tokens per session (209 once invoked), scanned A, original, Apache-2.0.

A file-reading skill that retrieves and displays the contents of a path supplied by the user.

In plain words
What is it for?
Use it to open, view, or summarize a specific file from the project or filesystem.
Why use it?
It gives a consistent way to inspect files while handling relative paths, large files, binary data, and permission errors clearly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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 skills/stephen94125/peon-lib/read-file
Any agent
npx skills add stephen94125/peon-lib --skill read-file
Clone the repo
git clone --depth 1 https://github.com/stephen94125/peon-lib

Made for: Claude Code, Codex.

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 read-file

README.md
[![agentmods](https://agentmods.dev/badge/skills/stephen94125/peon-lib/read-file.svg)](https://agentmods.dev/skills/stephen94125/peon-lib/read-file)
Your own site
<a href="https://agentmods.dev/skills/stephen94125/peon-lib/read-file"><img src="https://agentmods.dev/badge/skills/stephen94125/peon-lib/read-file.svg" alt="Measured on agentmods" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 209 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 5.1 $0.00041 $0.00209
Opus 5 $0.00020 $0.00105
Sonnet 5 $0.00008 $0.00042
Haiku 4.5 $0.00004 $0.00021

Measured 5d ago against content hash 34aa858c5741, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

read-file 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 5d 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.

skills/read-file/SKILL.md · 25 lines

What it actually says

Read File

When the user provides a file path, use the read_file tool to retrieve its contents.

When to use this skill

  • User says "open", "read", "view", "show", or "display" followed by a path.
  • User pastes a path and asks to inspect or summarize the file.

How to read a file

Call the read_file tool with the path exactly as provided by the user. If the path is relative, resolve it against the current working directory.

Gotchas

  • Binary files (images, PDFs, executables) will return garbled output — warn the user.
  • Very large files may be truncated — inform the user if so.
  • Permission errors should be surfaced clearly with the exact path that was denied.
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. 5d ago First seen · 25 lines · 41 tokens per session scan A 34aa858c5741

Subscribe to this mod's changes

read-file is a skill published in the GitHub repository stephen94125/peon-lib (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 41 tokens to every session and 209 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 2026-08-31.

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