debug SKILL.md skillA

debug from riot-org/riot is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add riot-org/riot/debug@git:20260817.d4dfa41

Pins git:20260817.d4dfa41 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: riot-org/riot
Path: crates/riot-kernel/builtin/skills/debug/SKILL.md
Versions recorded: 1
Latest version: git:20260817.d4dfa41, committed Aug 17, 2026
Size: 2,427 bytes
Repository stars: 22
License: a license file GitHub does not identify

排查 bug 时用。顺序是硬的：先复现、再让证据淘汰假设、修根因、用原始复现路径验证。不要看到第一个可疑点就动手改。.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# 调试

顺序是硬的：**复现 → 定位 → 修 → 验证**。跳过复现直接改，修完也不知道
修没修好；「看起来像这个问题」的改动堆几层，代码比原来更难懂。

## 1. 复现

- 拿到最小复现路径：什么输入、什么操作、期望什么、实际什么。
- 按用户的描述复现不出来时，先对齐环境差异（版本、配置、数据），
  不要按「大概是这个意思」开修。
- 间歇性的 bug 先想并发、时序、未初始化、缓存。复现率不到 100% 也要
  拿到一个「多跑几次必现」的脚本——没有它，最后没法证明修好了。

## 2. 定位：让证据淘汰假设

- 看到症状先列 2-3 个候选假设，再找**能区分它们**的证据——不是找
  支持第一个假设的证据。
- 二分收敛：注释掉一半、在中间点打日志、`git bisect`。每一步的目标
  是砍掉一半可能性，而不是「再看一眼」。
- `[约束]` 打日志要打**变量的值**，不是「到这里了」。执行路径只占
  bug 的少数，多数 bug 错在数据不在路径。
- git 历史是证据：`git log -p -- 那个文件` 看这行什么时候变的、当时
  的提交想干什么。「以前是好的」这类 bug，bisect 比读代码快得多。

## 3. 修

- 修**根因**，不是在症状处打补丁。上游给了空值，在下游判空只是把
  炸点挪远了，还把上游的问题盖住了。
- 最小改动。定位过程中看到的其它可疑点，记下来告诉用户，不要一起
  改——一起改就分不清哪个改动起了作用。

## 4. 验证

- 用第 1 步的**原始复现路径**再跑一遍，不是用「我觉得等价」的路径。
- 跑一遍相关测试，确认没修出新的问题。
- 收尾回答两个问题：**同类的地方还有吗**（同一个错误模式往往不止
  一处，grep 一把）；**要不要加个测试守住这里**（这个 bug 能溜进来，
  说明现在没有测试拦它）。

## 调试自己刚写的代码时

嫌疑最大的不是代码，是自己对「输入长什么样」「这个 API 行为如何」的
假设。打印真实输入和中间值对着看，比反复重读代码快。

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add riot-org/riot/debug@sha256:630ed39a9fb87d2c

The line at the top of this page pins the label git:20260817.d4dfa41, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_y25lmncxehp3gszd.svg)](https://markdownregistry.com/a/art_y25lmncxehp3gszd)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Aug 17, 2026.

version	committed	commit	size	audit
git:20260817.d4dfa41 latest	2026-08-17	d4dfa41	2,427 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (2427 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

riot-org/riot · 22 stars · license a license file GitHub does not identify · pushed 2026-10-29 · branch master

API

GET https://markdownregistry.com/api/v1/artifacts/art_y25lmncxehp3gszd
GET https://markdownregistry.com/api/v1/resolve?ref=riot-org/riot/debug
GET https://markdownregistry.com/api/v1/blob/630ed39a9fb87d2c25eae3401ae35ed70fbe0d5d9b717ad6bbe8f15a1c563f4b

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from riot-org/riot

add-command SKILL.md skill

riot-org/riot · .riot/skills/add-command/SKILL.md · 给前端加一个 Tauri 命令时用。要改五处，漏了其中三处只表现为运行时「command not found」；权限文件还有个先后顺序的坑会让 build.rs 直接 panic。