skills: Instructions file for Codex

AGENTS.md

skills AGENTS.md is an instructions file for Codex, OpenCode from dream-num/skills. It costs 171 tokens per session, scanned A, original, Apache-2.0.

Project instructions for an AI tool that works with spreadsheets, Excel workbooks, and CSV files. They also define how to describe the Univer API and plan complex work.

In plain words
What is it for?
Working with spreadsheet data through Univer CLI, reviewing planned changes, and defining clear success criteria before complex tasks.
Why use it?
They help the tool follow the project’s terminology and planning rules, so important API details are not shortened or lost.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is dream-num/skills's own configuration. It tells Codex and OpenCode how to work on skills itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything skills configures →

Reuse

Borrowing it

Nothing to install: this file belongs to dream-num/skills. 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/dream-num/skills/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/dream-num/skills

Made for: Codex, OpenCode.

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.

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README.md
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Your own site
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Per session 171 This file is loaded in full into every session.
When invoked 171 The same file — it is already loaded in full.
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 $0.00171 $0.00171
Opus 5.5 $0.00068 $0.00068
Sonnet 5.5 $0.00034 $0.00034
Haiku 4.5 $0.00017 $0.00017

Measured 1mo ago against content hash b58238606782, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skills AGENTS.md 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 1mo 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.

AGENTS.md · 9 lines

What it actually says

  • Never simplify the run-api reference descriptions of the UNIVER API. They are foundational context for LLMs to understand Univer API behavior and contracts.
  • When introducing univer-cli, keep the wording concise, elegant, and aligned with the taste of experienced mainstream developers. Avoid verbose, repetitive, or over-explained descriptions.
  • Unless a shell behavior is unique to univer-cli, avoid explaining obvious shell usage. Assume the LLM is already highly proficient with shell workflows.
  • For complex project planning, define success criteria before the plan. The success criteria file is a short checklist of user-visible outcomes, preservation constraints, deliverables, validation signals, non-goals, and ambiguities left for the plan. It is not a plan and must not contain pack decomposition, assertion design, or execution strategy.
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. 1mo ago First seen · 9 lines · 171 tokens per session scan A b58238606782

Subscribe to this mod's changes

skills AGENTS.md is an instructions file published in the GitHub repository dream-num/skills (78 stars, last pushed 14d ago), licensed Apache-2.0. It adds 171 tokens to every session, about $0.0007 per session on Opus 5.5. 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.

Related

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