trm-core: Instructions file for Codex

AGENTS.md

trm-core AGENTS.md is an instructions file for Codex, OpenCode from RegestaItalia/trm-core. It costs 310 tokens per session, scanned A, original, MIT.

A repository instruction file for maintaining public SystemConnector APIs in RegestaItalia/trm-core. It defines required update, compatibility, cleanup, testing, end-to-end testing, and build steps.

In plain words
What is it for?
Use it when adding, editing, renaming, or removing a public connector API, changing actions that modify SAP data, or running SAP integration tests.
Why use it?
It helps contributors avoid breaking related backend versions, leaving changed data behind after failures, or completing a change without the required verification.

Instructions file for CodexOpenCode

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

This is RegestaItalia/trm-core's own configuration. It tells Codex and OpenCode how to work on trm-core 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 trm-core configures →

Reuse

Borrowing it

Nothing to install: this file belongs to RegestaItalia/trm-core. 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/RegestaItalia/trm-core/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/RegestaItalia/trm-core

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 trm-core AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/regestaitalia/trm-core/agents-md/github.svg)](https://agentmods.dev/instructions/regestaitalia/trm-core/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/regestaitalia/trm-core/agents-md"><img src="https://agentmods.dev/badge/instructions/regestaitalia/trm-core/agents-md/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 trm-core AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/regestaitalia/trm-core/agents-md"><img src="https://agentmods.dev/badge/instructions/regestaitalia/trm-core/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 310 This file is loaded in full into every session.
When invoked 310 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 $0.00310 $0.00310
Opus 5.5 $0.00124 $0.00124
Sonnet 5.5 $0.00062 $0.00062
Haiku 4.5 $0.00031 $0.00031

Measured yesterday against content hash a6f3132d7863, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

trm-core 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 yesterday.

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 · 23 lines

What it actually says

Agent guidance

When adding, editing, renaming, or removing a public SystemConnector API, follow the SystemConnector API maintenance workflow.

When an existing action starts calling a new backend API, remember that trm-core upgrades trm-server and trm-rest, so the upgrade runs on a backend without it: register the API in TRM_BACKEND_APIS and skip it only when lacksTrmBackendApis says so. That fallback is allowed only for a trm-server/trm-rest upgrade; anywhere else a missing API is an error (see the workflow).

When changing an action that creates, deletes, or modifies SAP-system data, update the action's failure-injection and rollback tests in the same change. The revert path must make a best-effort cleanup: continue attempting independent cleanup operations after one fails, restore prior state only after destructive cleanup succeeds, and surface the first failure after the cleanup pass. Run the affected tests and the full test suite, then run the TypeScript build before completing the change.

When running end-to-end tests against an SAP system and a registry, follow the e2e procedure and write the report as described in the e2e report contract.

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. yesterday First seen · 23 lines · 310 tokens per session scan A a6f3132d7863

Subscribe to this mod's changes

trm-core AGENTS.md is an instructions file published in the GitHub repository RegestaItalia/trm-core (3 stars, last pushed 3d ago), licensed MIT. It adds 310 tokens to every session, about $0.0012 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 2026-11-07.

Related

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trm-core AGENTS.md next to 6 instructions from other repositories
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