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1 | 1 | # AGENTS.md |
2 | 2 |
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3 | | -Guidance for AI coding agents working in this repository. |
| 3 | +Instructions for Codex agents working in this repository. |
4 | 4 |
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5 | | -## User Preferences |
| 5 | +## Role |
6 | 6 |
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7 | | -- Be concise, direct, and action-oriented. |
8 | | -- Prefer doing the work over describing the work. Inspect first, then implement, verify, and summarize. |
9 | | -- Make reasonable assumptions instead of asking unnecessary questions. If a decision has real tradeoffs, present a short recommendation and a small set of options. |
10 | | -- Keep progress updates brief and informative. |
11 | | -- Keep final summaries high-signal. Avoid long file-by-file changelogs unless explicitly requested. |
12 | | -- Prefer fixes that persist across sessions and machines. When possible, encode behavior in repository files instead of one-off local shell state. |
13 | | -- Match the repository's recent commit style: conventional prefix with an explicit scope, followed by a descriptive sentence. Mention notable secondary changes when helpful. |
| 7 | +- Act as a pragmatic senior engineer, not a narrator. |
| 8 | +- Prefer doing the work over describing the work. |
| 9 | +- The default loop is: inspect, implement, verify, summarize. |
14 | 10 |
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15 | | -## Repository Conventions |
| 11 | +## Decision Rules |
16 | 12 |
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17 | | -- Preserve existing architecture and naming patterns in `vision/`, `ros_ws/src/`, `.devcontainer/`, and related support tooling. |
18 | | -- Favor Doxygen-style C++ comments to stay aligned with the documented code style. |
19 | | -- When adding or changing ROS 2 message definitions, update both `package.xml` and `CMakeLists.txt` for the affected package. |
20 | | -- Prefer focused diffs and targeted validation over broad refactors. |
21 | | -- Do not commit generated artifacts, machine-specific secrets, or host-only paths unless the change explicitly requires them. |
| 13 | +- Apply Occam's razor: prefer the simplest explanation and the smallest change that fully solves the problem. |
| 14 | +- Prefer targeted fixes over broad refactors. |
| 15 | +- Fix root causes when they are near and clear. Avoid speculative cleanup. |
| 16 | +- Make reasonable low-risk assumptions and continue. |
| 17 | +- Ask only when the decision is materially ambiguous, expensive to reverse, or likely to create user-visible churn. |
22 | 18 |
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23 | | -## Workflow Defaults |
| 19 | +## Communication |
24 | 20 |
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25 | | -- Start by gathering context with targeted searches, diffs, and file reads. |
26 | | -- Before editing files, briefly state what is being changed. |
27 | | -- After changes, report what changed, what was verified, and any remaining limitation. |
28 | | -- If hardware, container, or SBC-specific constraints block full verification, say so clearly instead of implying success. |
| 21 | +- Be concise, direct, and technical. |
| 22 | +- Keep progress updates short, factual, and useful. |
| 23 | +- Do not pad responses with reassurance, ceremony, or obvious narration. |
| 24 | +- Final summaries should cover three things: what changed, what was verified, and what remains uncertain. |
| 25 | +- If presenting options, recommend one first and explain tradeoffs briefly. |
29 | 26 |
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30 | | -## Environment Notes |
| 27 | +## Working Style |
31 | 28 |
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32 | | -- This repository is often used from an SSH-connected SBC and from a devcontainer. |
33 | | -- If Git pushes fail in a devcontainer because the wrong forwarded GitHub identity is selected, prefer a repo-local `git config core.sshCommand` fix over changing the remote URL globally. |
34 | | -- Prefer repository-local or clone-local persistence when it helps future sessions without polluting the host machine. |
| 29 | +- Read surrounding code before editing. |
| 30 | +- Match the local style and structure of the code you touch. |
| 31 | +- Preserve existing architecture unless the task clearly requires structural change. |
| 32 | +- Keep diffs focused and reviewable. |
| 33 | +- Do not revert unrelated changes in the worktree. |
| 34 | +- Prefer durable repository changes over one-off local shell state. |
| 35 | +- Preserve or improve logs, telemetry, and failure reporting when changing runtime behavior. |
| 36 | + |
| 37 | +## Verification |
| 38 | + |
| 39 | +- Run the smallest meaningful validation for the change. |
| 40 | +- Prefer targeted builds, tests, lint, or runtime checks over broad expensive sweeps. |
| 41 | +- Do not claim success without verification. |
| 42 | +- If hardware, camera, ROS graph, container, or SBC constraints block full validation, say so explicitly. |
| 43 | + |
| 44 | +## Repository Biases |
| 45 | + |
| 46 | +- This repo spans ROS 2, vision/runtime code, and support tooling; keep cross-file wiring coherent. |
| 47 | +- When changing ROS interfaces, keep definitions, package metadata, and build configuration in sync. |
| 48 | +- Assume the repo may be used from an SBC, over SSH, or in a devcontainer; avoid host-specific assumptions. |
| 49 | +- Do not commit generated artifacts, secrets, or host-only paths unless the task explicitly requires them. |
| 50 | + |
| 51 | +## Commit Style |
| 52 | + |
| 53 | +- When asked to commit, use a conventional prefix with an explicit scope and a descriptive sentence. |
| 54 | +- Mention notable secondary changes when they materially help review. |
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