lov-clash-tun-doctor

name	lov-clash-tun-doctor
description	Diagnose and repair application connectivity failures caused by Clash Verge Rev TUN routing, rule precedence, stale runtime state, proxy timeouts, or unusable IPv6 paths. Trigger for symptoms such as WeChat images failing to send, Moments images loading slowly, an app hanging after TUN is enabled, or requests unexpectedly matching DIRECT/proxy rules. Also trigger when the user mentions "Clash TUN 排障", "微信图片发不出去", "朋友圈图片加载慢", "修复微信 TUN 网络", or "diagnose Clash TUN app connectivity".
license	MIT
metadata	{"author":"contributors","version":"0.3.0","tags":"clash mihomo tun network diagnostics wechat macos"}

Clash TUN Doctor

Evidence-first diagnosis and reversible repair for application networking failures behind Clash Verge Rev TUN mode.

When to Use

• An application works without TUN but fails, stalls, or loses media with TUN.
• WeChat text works while image uploads or Moments images fail.
• A rule change makes the symptom worse or the app remains stuck on Loading.
• The subscription says ipv6: false, but runtime traffic still uses IPv6.
• Clash logs contain no route to host, context deadline exceeded, or an unexpected rule/strategy for the affected process.

Do not use this skill for generic subscription acquisition, node purchasing, or bypassing organizational network policy.

Workflow (MANDATORY)

Step 0: Resolve the skill and Clash data directories

Resolve SKILL_DIR from the installed skill context. For manual execution:

export SKILL_DIR="/path/to/lov-clash-tun-doctor"

The CLI resolves the Clash Verge Rev data directory in this order:

1. --data-dir
2. SKILL_CLASH_TUN_DOCTOR_DATA_DIR
3. macOS Clash Verge Rev default under ~/Library/Application Support/

Never hard-code a user's home directory.

Step 1: Diagnose before proposing a rule

Run the read-only command first:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" diagnose --app wechat

Report concrete evidence from all available layers:

• App-level config.yaml overrides.
• Generated clash-verge.yaml top-level and DNS IPv6 values.
• Runtime /configs, /rules, and /connections through Mihomo's Unix socket.
• Recent service-log failures for the target application.

Treat screenshots and runtime state as truth. A rule saying DIRECT does not prove the connection succeeded.

Step 2: Choose the narrowest repair

Use references/troubleshooting.md to map evidence to a repair. For the proven WeChat pattern, use the built-in repair:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" fix-wechat

This is a dry run. It previews:

• Direct rules for the WeChat processes and media domains.
• Disabling the app-level IPv6 override that can supersede subscription and extension settings.
• The exact files that would be backed up and changed.

Do not route the whole application through a proxy merely because direct media failed. First check proxy health and IPv6 errors; a proxy timeout can turn one failed image into a fully stuck application.

For a browser site or application with multiple dependency hosts, generate one evidence-backed DIRECT list instead of adding domains one by one:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" direct-list \
  --app miracleplus \
  --host apply.miracleplus.com \
  --output ./miracleplus-direct.yaml

The command reads active connections and recent rotated service logs, deduplicates hostnames, and includes only:

• Hosts explicitly supplied with --host.
• Hosts previously observed through a non-DIRECT route.
• Hosts already maintained as explicit DIRECT rules.

Hosts observed only through a healthy DIRECT route are reported as ignored instead of bloating the explicit list.

Step 3: Apply only with user authorization

For a DIRECT list, preview first, then persist and hot-load it:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" direct-list \
  --app miracleplus \
  --host apply.miracleplus.com \
  --apply

This path must merge with existing prepend rules, create a timestamped backup, update the generated config, hot-load Mihomo through its Unix socket, and verify every listed host as an exact DOMAIN -> DIRECT runtime rule. Keep Clash Verge running throughout this rule-only flow.

For the specialized WeChat IPv6 repair, run:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" fix-wechat --apply

The command must:

1. Stop Clash Verge before editing its generated global settings.
2. Create a timestamped backup and manifest.
3. Set the global IPv6 override to false.
4. Prepend persistent WeChat DIRECT rules in the current profile's rule file.
5. Restart Clash Verge and verify final/runtime state.

If verification fails, report the backup path and do not claim success.

Step 4: Restart the affected application and verify the user path

Close stale connections or restart the affected application. Re-run diagnosis:

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" diagnose --app wechat --json

For the WeChat IPv6 failure, success requires all of the following:

• Runtime ipv6 is false.
• WeChat rules resolve to DIRECT.
• New WeChat destinations are IPv4.
• New logs no longer show WeChat no route to host errors.
• The user can send an image and load Moments images.

Step 5: Roll back when needed

python3 "$SKILL_DIR/scripts/clash_tun_doctor.py" rollback --apply

Rollback restores the newest backup by default. Never delete backups automatically.

CLI Reference

Command / option	Default	Description
diagnose	—	Read configuration, runtime state, connections, and logs.
direct-list	—	Discover, export, or apply an evidence-backed DIRECT host list.
fix-wechat	dry run	Preview or apply the proven WeChat repair.
rollback	dry run	Preview or restore the latest repair backup.
--data-dir PATH	auto	Clash Verge Rev application data directory.
--socket PATH	<data-dir>/mihomo.sock fallback	Mihomo controller Unix socket; standard /tmp/verge/verge-mihomo.sock is auto-detected.
--app NAME	wechat	Application filter used by diagnosis.
--host HOST	—	Seed an exact host in a DIRECT list; repeatable.
--output PATH	—	Save a Mihomo classical rule-provider YAML list.
--log-limit N	4000	Recent lines inspected in each rotated service log.
--apply	false	Authorize filesystem changes and restart/restore actions.
--no-reload	false	Persist a DIRECT list without runtime hot-load.
--no-restart	false	Apply changes without restarting Clash Verge.
--json	false	Emit machine-readable diagnosis output.

Dependencies

Python 3.8+ standard library only.

Runtime context (shared)

运行前读取本 Skill 包的 skill.yaml，由宿主提供 skill-runtime/v1 上下文。字段解析顺序为：当前请求、项目上下文、个人 Preferences、品牌 Profile、通用默认值。

• 只使用 Manifest 声明的字段；Profile 保存公开品牌事实，Preferences 保存个人工作偏好。
• required: true 字段缺失时，按 Manifest 的问题配置向用户提出一个聚焦问题；用户明确同意后再保存回答。
• 报错提供可复制的 context_id、字段路径与来源，诊断内容避开秘密、完整私人路径和原始配置。

通用反馈闭环

用户在 Skill 驱动任务中提出修改意见时，继续当前产物前必须执行：

1. 先判断意见是 task-specific（仅本次）还是 reusable（可跨任务复用）。
2. task-specific 只修改当前任务，不改 Skill。
3. reusable 先确定作用域：领域规则先更新对应 canonical Skill；适用于所有 Skill 的规则先更新共享规范。
4. 完成规则更新、版本、lint 与分发核验后，再把修改应用到当前任务。
5. reusable 修改会使此前的“确认”“继续”“发吧”失效；完成当前产物修改和回读后必须停下，等待用户下一步指示，不自动进入发布、提交或其他外部写入。