decision-table AGENTS.md

decision-table AGENTS.md is an instructions file for Codex, OpenCode from tetracoralla/decision-table. It costs 500 tokens per session, scanned A, original, Apache-2.0.

Repository instructions that define the rules, boundaries, data model, and checks for a decision-table project. A decision table represents outcomes from structured conditions and inputs.

In plain words
What is it for?
Use them when changing or reviewing the repository, especially its schemas, command-line interface, MCP interface, examples, or Codex skill.
Why use it?
They give an agent a shared contract for making or reviewing changes without violating the project's rules.

Instructions file for CodexOpenCode

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

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 instructions/tetracoralla/decision-table/agents-md
Clone the repo
git clone --depth 1 https://github.com/tetracoralla/decision-table

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 decision-table AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tetracoralla/decision-table/agents-md.svg)](https://agentmods.dev/instructions/tetracoralla/decision-table/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tetracoralla/decision-table/agents-md"><img src="https://agentmods.dev/badge/instructions/tetracoralla/decision-table/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 500 This file is loaded in full into every session.
When invoked 500 The same file — it is already loaded in full.
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 $0.00500 $0.00500
Opus 5 $0.00250 $0.00250
Sonnet 5 $0.00100 $0.00100
Haiku 4.5 $0.00050 $0.00050

Measured 5d ago against content hash 7debabd45830, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

decision-table 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 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.

AGENTS.md · 50 lines

How it starts

The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Decision Table repository contract

Product boundary

This repository owns a deterministic Agent-facing decision interface. It does not own workflows, business process orchestration, policy authoring by an LLM, general expression evaluation, optimization, or a visual rule editor.

Read docs/PRODUCT_MODEL.md and docs/REVIEW_CONTRACT.md before changing or reviewing the product.

A plain owner request to review, audit, 审核, or 复核 automatically invokes the complete review contract in read-only mode unless fixes are also requested. Treat it as the minimum scope, not a ceiling, and finish with tools-dev workspace escalations for shared contracts, installation, or resource risks; do not ask the owner to supply a separate checklist.

The canonical model is docs/PRODUCT_MODEL.md; the executable Zod schemas in src/model/schemas.ts are the transport and runtime authority. Keep examples, CLI, MCP, and the Codex Skill on that one model.

Invariants

  • Never evaluate source strings, JavaScript, regular expressions, or an opaque expression object. Conditions use the tagged canonical IR only.
  • Missing data is UNKNOWN, not false or null. Preserve three-valued semantics through all, any, and not.
  • Decimal facts are canonical strings. Do not silently accept binary floating point for decimal inputs.
  • Reject unknown request, ruleset, condition, and fact fields. A typo must not silently change a decision.
  • Every result identifies the exact ruleset id, version, and deterministic fingerprint that produced it. Version and effective-window failures are ordinary structured statuses.
  • Static analysis must only report mechanically proven overlap or shadowing. Do not imply full SAT/SMT completeness.
  • MCP tools are read-only and idempotent. They accept inline JSON only; do not add ambient filesystem authority without a separately granted root and path escape tests.
  • Keep the ordinary result envelope below the declared response limit and all request-wide node, depth, input, and rule limits cumulative.

Read the full file on GitHub · 50 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. 5d ago First seen · 50 lines · 500 tokens per session scan A 7debabd45830

Subscribe to this mod's changes

decision-table AGENTS.md is an instructions file published in the GitHub repository tetracoralla/decision-table (0 stars, last pushed 6d ago), licensed Apache-2.0. It adds 500 tokens to every session, about $0.0025 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.