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SubMiner/.agents/skills/subminer-change-verification/SKILL.md

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---
name: "subminer-change-verification"
description: "Use when working in the SubMiner repo and you need to verify code changes actually work. Covers targeted regression checks during debugging and pre-handoff verification, with cheap-first lane selection for config, docs, launcher/plugin, runtime-compat, and optional real-runtime escalation."
---
# SubMiner Change Verification
Use this skill for SubMiner code changes. Default to cheap, repo-native verification first. Escalate only when the changed behavior actually depends on Electron, mpv, overlay/window tracking, or other GUI-sensitive runtime behavior.
## Scripts
- `scripts/classify_subminer_diff.sh`
- Emits suggested lanes and flags from explicit paths or current git changes.
- `scripts/verify_subminer_change.sh`
- Runs selected lanes, captures artifacts, and writes a compact summary.
If you need an explicit installed path, use the directory that contains this `SKILL.md`. The helper scripts live under:
```bash
export SUBMINER_VERIFY_SKILL="<path-to-skill>"
```
## Default workflow
1. Inspect the changed files or user-requested area.
2. Run the classifier unless you already know the right lane.
3. Run the verifier with the cheapest sufficient lane set.
4. If the classifier emits `flag:real-runtime-candidate`, do not jump straight to runtime verification. First run the non-runtime lanes.
5. Escalate to explicit `--lane real-runtime --allow-real-runtime` only when cheaper lanes cannot validate the behavior claim.
6. Return:
- verification summary
- exact commands run
- artifact paths
- skipped lanes and blockers
## Quick start
Repo-source quick start:
```bash
bash .agents/skills/subminer-change-verification/scripts/classify_subminer_diff.sh
```
Installed-skill quick start:
```bash
bash "$SUBMINER_VERIFY_SKILL/scripts/classify_subminer_diff.sh"
```
Classify explicit files:
```bash
bash .agents/skills/subminer-change-verification/scripts/classify_subminer_diff.sh \
launcher/main.ts \
plugin/subminer/lifecycle.lua \
src/main/runtime/mpv-client-runtime-service.ts
```
Run automatic lane selection:
```bash
bash .agents/skills/subminer-change-verification/scripts/verify_subminer_change.sh
```
Installed-skill form:
```bash
bash "$SUBMINER_VERIFY_SKILL/scripts/verify_subminer_change.sh"
```
Run targeted lanes:
```bash
bash .agents/skills/subminer-change-verification/scripts/verify_subminer_change.sh \
--lane launcher-plugin \
--lane runtime-compat
```
Dry-run to inspect planned commands and artifact layout:
```bash
bash .agents/skills/subminer-change-verification/scripts/verify_subminer_change.sh \
--dry-run \
launcher/main.ts \
src/main.ts
```
## Lane guidance
- `docs`
- For `docs-site/`, `docs/`, and doc-only edits.
- `config`
- For `src/config/` and config-template-sensitive edits.
- `core`
- For general source changes where `typecheck` + `test:fast` is the best cheap signal.
- `launcher-plugin`
- For `launcher/`, `plugin/subminer/`, plugin gating scripts, and wrapper/mpv routing work.
- `runtime-compat`
- For `src/main*`, runtime/composer wiring, mpv/overlay services, window trackers, and dist-sensitive behavior.
- `real-runtime`
- Only after deliberate escalation.
## Real Runtime Escalation
Escalate only when the change claim depends on actual runtime behavior, for example:
- overlay appears, hides, or tracks a real mpv window
- mpv launch flags or pause-until-ready behavior
- plugin/socket/auto-start handshake under a real player
- macOS/window-tracker/focus-sensitive behavior
If the environment cannot support authoritative runtime verification, report the blocker explicitly. Do not silently downgrade a runtime-required claim to a pass.
## Artifact contract
The verifier writes under `.tmp/skill-verification/<timestamp>/`:
- `summary.json`
- `summary.txt`
- `classification.txt`
- `env.txt`
- `lanes.txt`
- `steps.tsv`
- `steps/*.stdout.log`
- `steps/*.stderr.log`
On failure, quote the exact failing command and point at the artifact directory.