SSOT-SKILL: Instructions file for Codex

AGENTS.md

SSOT-SKILL AGENTS.md is an instructions file for Codex, OpenCode from huangpufan/SSOT-SKILL. It costs 1,662 tokens per session, scanned C, original, MIT.

Repository instructions for SSOT-SKILL, a group of skills that keeps important repository facts in a single Markdown-based record. SSOT means “single source of truth.”

In plain words
What is it for?
Use them before substantial work, when starting or repairing the repository record, after major changes, or when checking whether the record is healthy and current.
Why use it?
They define how agents should read, create, check, and update that record so repository knowledge does not become scattered or outdated.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions subagents; mentions AGENTS.md; mentions Codex.

This is huangpufan/SSOT-SKILL's own configuration. It tells Codex and OpenCode how to work on SSOT-SKILL 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 SSOT-SKILL configures →

Reuse

Borrowing it

Nothing to install: this file belongs to huangpufan/SSOT-SKILL. 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/huangpufan/SSOT-SKILL/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/huangpufan/SSOT-SKILL

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.

agentmods badge for SSOT-SKILL AGENTS.md

README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/huangpufan/ssot-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/huangpufan/ssot-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,662 This file is loaded in full into every session.
When invoked 1,662 The same file — it is already loaded in full.
Security scan C 2 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 $0.01662 $0.01662
Opus 5.5 $0.00665 $0.00665
Sonnet 5.5 $0.00332 $0.00332
Haiku 4.5 $0.00166 $0.00166

Measured 9d ago against content hash d3e183144e19, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade C, and why

SSOT-SKILL AGENTS.md scanned grade C with 2 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.

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.

Downloads and executes remote codehighSupply chain

curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.

curl -fsSL https://raw.githubusercontent.com/huangpufan/SSOT-SKILL/main/install.sh | bash -s -- --quickstart

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -fsSL https://raw.githubusercontent.com/huangpufan/SSOT-SKILL/main/install.sh | bash -s -- --quickstart
AGENTS.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

AGENTS.md should fit in the reader's working memory; if a section grows past comfortable reading, consolidate or demote before adding.

What This Repo Is

SSOT-SKILL is a skill bundle that gives a software repository a small, maintained memory in SSOT/: what the project is for, how it works, the rules people decided, why things are the way they are, and the traps. DESIGN.md explains why it is shaped this way, including what version 3 removed. The bundle contains six skills:

Skill Role
ssot-preflight Read the relevant memory before substantive work
ssot-bootstrap Create, continue, or migrate a repository's SSOT (with the user's agreement)
ssot-closeout Record durable changes after a substantive batch; writes nothing when none
ssot-doctor Check, review, or catch up SSOT
ssot-audit Compatibility name; routes to Doctor's catch-up
ssot-skill Compatibility name; routes to the four above

Install

When a user asks you to install or reinstall this bundle, follow INSTALL.md. The short form:

curl -fsSL https://raw.githubusercontent.com/huangpufan/SSOT-SKILL/main/install.sh | bash -s -- --quickstart

For upgrade or uninstall, see bash install.sh --help.

Usage

In consuming repositories, complete the instruction wiring in INSTALL.md, then restart the agent session. Users describe tasks normally; the agent selects the matching skills automatically.

The consumer instruction block lives in the bootstrap adapter template (English, 中文), between the SSOT-SKILL:BEGIN / SSOT-SKILL:END markers. The installer prints that same block; maintain its wording there. Each skill's SKILL.md owns the detailed protocol.

Language

  • Skill protocol text (SKILL.md, references/) is in English for routing accuracy.
  • Bootstrap templates ship in both en/ and zh/; the installer copies one language based on --lang.
  • Consumer-facing SSOT/ documentation follows the language in the consumer's SSOT/README.md front matter.

Read the full file on GitHub · 86 lines

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 Changed · +4 lines · +144 tokens per session d3e183144e19
  2. 10d ago Changed · +3 lines · +97 tokens per session a9bb75663a6d
  3. 1mo ago Changed · -4 lines · +23 tokens per session 85f0d866eead
  4. 2mo ago First seen · 83 lines · 1,398 tokens per session scan C dd4fe630036e

Subscribe to this mod's changes

SSOT-SKILL AGENTS.md is an instructions file published in the GitHub repository huangpufan/SSOT-SKILL (11 stars, last pushed today), licensed MIT. It adds 1,662 tokens to every session, about $0.0066 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

SSOT-SKILL AGENTS.md compared with instructions from other repositories

SSOT-SKILL AGENTS.md next to 6 instructions from other repositories
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SSOT-SKILL AGENTS.mdhuangpufan/SSOT-SKILLInstructions file11todayMITC1,662Codex, OpenCode
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next.js AGENTS.mdvercel/next.jsInstructions file143ktodayMITA7,461Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode