RPent: Instructions file for Codex

AGENTS.md

RPent AGENTS.md is an instructions file for Codex, OpenCode from RLinf/RPent. It costs 790 tokens per session, scanned A, original, Apache-2.0.

A repository instruction guide for agents working on RPent, including its code layout, development practices, interfaces, documentation, and testing expectations. RPent is the software project covered by these instructions.

In plain words
What is it for?
Use it when navigating or modifying the RPent codebase, especially when changing shared interfaces, robot integrations, runtime behavior, documentation, or tests.
Why use it?
It gives an agent the project context needed to make changes without overlooking repository conventions or related code. It also points to the right areas for planners, tools, memory, robots, documentation, and tests.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: reads .claude/ paths; mentions CLAUDE.md.

This is RLinf/RPent's own configuration. It tells Codex and OpenCode how to work on RPent 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 RPent configures →

About the project

RPent is an open framework for building embodied agents, software systems that perceive and act in the physical world while combining reasoning, memory, execution, and adaptation. It is intended for embodied-intelligence researchers working on physical tasks and related evaluations.

RLinf/RPent · 1,640 stars · on GitHub · rpent.readthedocs.io

Reuse

Borrowing it

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

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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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 RPent AGENTS.md

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Per session 790 This file is loaded in full into every session.
When invoked 790 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 $0.00790 $0.00790
Opus 5.5 $0.00316 $0.00316
Sonnet 5.5 $0.00158 $0.00158
Haiku 4.5 $0.00079 $0.00079

Measured 18d ago against content hash 3dee148c648d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

RPent 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 18d 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 · 66 lines

How it starts

The opening of the file, as written. The whole thing — 66 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working on RPent

Follow CONTRIBUTING.md for development conventions, including module ownership and interface contracts, and for testing and pull requests. Use the implementation and its callers to verify behavior; report disagreements with documentation instead of assuming either is correct.

Repository map

  • rpent/planner/, rpent/session/, and rpent/prompt/: planner adapters, execution sessions, and shared prompt construction.
  • rpent/tools/ and rpent/memory/: tool execution, observations, and memory.
  • rpent/robots/: robot discovery, descriptors, shared runtime, and Env/VLA components. robots/<robot>/ owns each concrete integration.
  • rpent/cli/, rpent/dashboard/, and rpent/evaluation/: entry points, interactive execution, and run results.
  • tests/: offline tests and integration checks; see tests/README.md.
  • docs/source-en/ and docs/source-zh/: paired user and developer documentation.

Development principles

  • Confirm the working branch and relevant upstream state before editing. Read the closest current implementation and both sides of changed interfaces. Preserve unrelated working-tree changes.
  • Reuse existing configuration, registration, RPC, runtime, and artifact helpers. Prefer RLinf's supported Env/VLA implementations with thin RPent adapters.
  • Base compatibility paths and new abstractions on actual consumers or supported data.
  • Validate external inputs at the boundary that owns the operation. Keep internal control flow direct, avoid repeated checks of established state, and preserve useful errors. Make resource ownership and cleanup explicit.
  • Keep optional simulator/model imports at their use sites so basic imports, robot discovery, and CLI help work without every robot extra installed.
  • Follow neighboring code for naming and structure, use the project logger, and follow CONTRIBUTING's type annotation and docstring conventions.
  • Write prose about current behavior and non-obvious constraints. Keep review exchanges and implementation history in PR discussions or migration notes. Translate meaning into natural Chinese and preserve technical identifiers.
  • Keep prompts and tool descriptions focused on the model's task. Remove repetition without dropping required behavior or operational constraints.
  • Test observable behavior and concrete regressions, reusing existing cases and fixtures where possible. Avoid tests that merely restate implementation details. Never weaken failing tests to make a change pass.

Read the full file on GitHub · 66 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. 18d ago Changed · -19 tokens per session 3dee148c648d
  2. 1mo ago First seen · 66 lines · 809 tokens per session scan A 4cf050064efc

Subscribe to this mod's changes

RPent AGENTS.md is an instructions file published in the GitHub repository RLinf/RPent (1,640 stars, last pushed 3d ago), licensed Apache-2.0. It adds 790 tokens to every session, about $0.0032 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 2026-09-17.

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