File Operations

File Operations is a skill for Claude Code, Codex from winsenlabs/platos. It costs 18 tokens per session (443 once invoked), scanned A, original, Apache-2.0.

A file-management skill for reading and writing files in a private workspace tied to the current conversation. Each conversation has its own isolated file area.

In plain words
What is it for?
Use it to save documents during a multi-step task, continue file work in a later turn, or pass a saved file to another tool.
Why use it?
It provides a place to keep intermediate work and prevents files from being visible across conversations, agents, or tenants.

Skill for Claude CodeCodex

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

Good fit Use it to save documents during a multi-step task, continue file work in a later turn, or pass a saved file to another tool.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/winsenlabs/platos/file_operations
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 winsenlabs/platos --skill file_operations
Clone the repo
git clone --depth 1 https://github.com/winsenlabs/platos

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 File Operations

README.md
[![agentmods](https://agentmods.dev/badge/skills/winsenlabs/platos/file_operations/github.svg)](https://agentmods.dev/skills/winsenlabs/platos/file_operations)
Your own site
<a href="https://agentmods.dev/skills/winsenlabs/platos/file_operations"><img src="https://agentmods.dev/badge/skills/winsenlabs/platos/file_operations/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 File Operations

Your own site · 80×15
<a href="https://agentmods.dev/skills/winsenlabs/platos/file_operations"><img src="https://agentmods.dev/badge/skills/winsenlabs/platos/file_operations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 18 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 443 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 $0.00018 $0.00443
Opus 5 $0.00009 $0.00221
Sonnet 5 $0.00004 $0.00089
Haiku 4.5 $0.00002 $0.00044

Measured 5d ago against content hash 437058e273cd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

File Operations 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.

apps/agent/src/skills/official/file_operations.skill.md · 45 lines

What it actually says

You have read/write access to a private workspace.

Workspace layout:

  • Each thread gets an isolated prefix: threads/<threadId>/.
  • Paths you pass are relative to that prefix (never absolute).
  • Other threads, other agents, and other tenants cannot see files in this workspace.

When to use:

  • Persist intermediate results between turns.
  • Build up a document iteratively across the conversation.
  • Hand off a file to a downstream tool that accepts a platos-attachment:// URI.
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 · 45 lines · 18 tokens per session scan A 437058e273cd

Subscribe to this mod's changes

File Operations is a skill published in the GitHub repository winsenlabs/platos (24 stars, last pushed today), licensed Apache-2.0. It adds 18 tokens to every session and 443 once invoked, about $0.0001 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 2026-09-04.

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