fix: address PR #332 review feedback

Addresses 12 of 13 review comments from Copilot and CodeRabbit on
PR #332. One comment (no-manifests in validate-plugins.yml) is
declined and answered inline; the rest are applied here.

Substantive fixes:

- .github/workflows/validate-plugins.yml — add --noconftest to the
  schema-tests step. tests/conftest.py imports structlog at module
  level, but the CI job only installs requirements-test.txt
  (pytest/httpx/jsonschema), so pytest collection would fail at
  conftest import. The schema tests don't use shared fixtures, so
  skipping conftest is safe and avoids dragging the full runtime
  requirements into a 2 KB validation job. (Copilot)

- schema/plugin.schema.json — tighten the server_files regex on both
  settings.server_files and diagnostics.server_files to match the
  runtime _validate_relpath rules in plugins/__init__.py. The
  previous regex only blocked absolute paths, drive letters,
  backslashes, and "..". The runtime also rejects "//", "./",
  "/./", and leading-dotfile segments. Schema-valid manifests are
  now also load-time-valid. Verified the regex against 12 cases:
  the 3 in-tree manifests still validate. (Copilot)

- .claude/skills/plugin-validate/SKILL.md — add a per-iteration
  plugin_ok flag so we no longer print "OK <path>" after an earlier
  FAIL in the same manifest. Schema-pass + id-mismatch previously
  produced both FAIL and OK lines for one plugin. (CodeRabbit)

- docs/websocket-protocol.md — clarify song_info.tuning array length
  is source-dependent (typically 6 guitar, 4 bass, but extended-range
  GP imports can be 7/8/5/6). Recommend highway.getStringCount() for
  the authoritative count. Line 30 already said this; the table row
  on line 12 was the stale half. (CodeRabbit)

Trivial fixes:

- .claude/rules/plugin-author.md — "wants included" -> "wants to
  include" in the settings.server_files rule. (CodeRabbit)

- Markdown MD040 — add `text` language tags to 7 bare-fence code
  blocks across AGENTS.md, docs/PLUGIN_AUTHORING.md,
  docs/testing-plugins.md, docs/plugin-logging.md, .claude/README.md,
  .claude/agents/slopsmith-reviewer.md, and
  .claude/skills/plugin-validate/SKILL.md (two fences). (CodeRabbit)

Declined:

- .github/workflows/validate-plugins.yml no-manifests -> exit 0
  (CodeRabbit suggested exit 1). Plugins in this repo are in-tree,
  not submodules (no .gitmodules, git submodule status empty), and
  the workflow has a path filter on plugins/**/plugin.json so it
  only runs when a manifest actually changes. Exit 0 is correct.
  Answered inline on the PR.

Verification:
  pytest tests/test_plugin_schema.py -v --noconftest    # 8 passed
  python -c "import json,glob,jsonschema; s=json.load(open('schema/plugin.schema.json')); [jsonschema.validate(json.load(open(p)), s) for p in sorted(glob.glob('plugins/*/plugin.json'))]"
  # ok — all 3 in-tree manifests validate against tightened schema
Signed-off-by: Miguel_LZPF <mgcdreamer@gmail.com>

.claude/README.md

@@ -4,7 +4,7 @@ This directory holds [Claude Code](https://claude.ai/code) artifacts: skills, ru
 
 ## Layout
 
-```
+```text
 .claude/
 ├── agents/                            Subagents (invoked via @<name>)
 │   └── slopsmith-reviewer.md          Plugin-aware code review

.claude/agents/slopsmith-reviewer.md

@@ -46,7 +46,7 @@ Run each item; structure the output as `PASS` / `FAIL` / `N/A` with file:line ci
 
 ## Output format
 
-```
+```text
 plugin-review: <plugin_id>
 =========================
 1. manifest validates                 PASS

.claude/rules/plugin-author.md

@@ -32,7 +32,7 @@ These rules apply only when editing files under `plugins/**`. They encode the co
 ## State and config
 
 - **`localStorage` keys must be prefixed with the plugin id** to avoid collisions.
-- **`settings.server_files` declares config-dir paths the plugin wants included in the Settings export/import flow.** Relpaths only — no `..`, no abs paths, no backslashes. See [`docs/plugin-manifest.md`](../../docs/plugin-manifest.md).
+- **`settings.server_files` declares config-dir paths the plugin wants to include in the Settings export/import flow.** Relpaths only — no `..`, no abs paths, no backslashes. See [`docs/plugin-manifest.md`](../../docs/plugin-manifest.md).
 - **`diagnostics.server_files` / `diagnostics.callable`** declares what enters the Export Diagnostics bundle. Keep payloads under 100 KB and don't include secrets. See [`docs/plugin-diagnostics.md`](../../docs/plugin-diagnostics.md).
 
 ## Visualization specifics

.claude/skills/plugin-validate/SKILL.md

@@ -31,6 +31,7 @@ for path in sorted(glob.glob('plugins/*/plugin.json')):
     plugin_dir = pathlib.Path(path).parent
     plugin_id = plugin_dir.name
     m = json.load(open(path))
+    plugin_ok = True  # per-iteration flag so we don't print OK after a later FAIL
     # 1. Schema
     try:
         jsonschema.validate(m, schema)
@@ -42,16 +43,19 @@ for path in sorted(glob.glob('plugins/*/plugin.json')):
     if m['id'] != plugin_id:
         print(f"FAIL {path}: id={m['id']!r} but directory is {plugin_id!r}")
         ok = False
+        plugin_ok = False
     # 3. Declared files exist
     for field in ('script', 'routes', 'tour'):
         if field in m and not (plugin_dir / m[field]).exists():
             print(f"FAIL {path}: {field}={m[field]!r} but file missing")
             ok = False
+            plugin_ok = False
     if 'settings' in m and 'html' in m['settings']:
         h = m['settings']['html']
         if not (plugin_dir / h).exists():
             print(f"FAIL {path}: settings.html={h!r} but file missing")
             ok = False
+            plugin_ok = False
     for field in ('settings', 'diagnostics'):
         if field in m and 'server_files' in m[field]:
             for relpath in m[field]['server_files']:
@@ -61,6 +65,8 @@ for path in sorted(glob.glob('plugins/*/plugin.json')):
                 if '..' in relpath or relpath.startswith('/') or '\\' in relpath:
                     print(f"FAIL {path}: {field}.server_files contains unsafe path {relpath!r}")
                     ok = False
+                    plugin_ok = False
+    if plugin_ok:
         print(f"OK   {path}")
 sys.exit(0 if ok else 1)
 PY
@@ -84,13 +90,13 @@ pytest tests/test_plugin_schema.py::test_schema_license_enum_subset_of_contribut
 
 Use the format from the script: `OK <path>` per validated manifest, `FAIL <path>: <reason>` per failure. Add a one-line summary:
 
-```
+```text
 Result: 3/3 plugins valid (OK app_tour_library, app_tour_settings, highway_3d)
 ```
 
 or
 
-```
+```text
 Result: 2/3 plugins valid; 1 FAIL (see above)
 ```
 

.github/workflows/validate-plugins.yml

@@ -67,4 +67,8 @@ jobs:
           PY
 
       - name: Run schema sanity tests
-        run: pytest tests/test_plugin_schema.py -v
+        # --noconftest skips tests/conftest.py, which imports structlog
+        # (not in requirements-test.txt). The schema tests don't use
+        # shared fixtures, so this is safe and avoids dragging the full
+        # runtime requirements into a 2 KB schema-validation job.
+        run: pytest tests/test_plugin_schema.py -v --noconftest

AGENTS.md

@@ -8,7 +8,7 @@ This file is the canonical orientation. Tool-specific automation (Claude skills/
 
 ## Architecture quick reference
 
-```
+```text
 server.py              FastAPI app — library API, WebSocket highway, plugin loading
 main.py                Programmatic uvicorn entrypoint — installs structlog before boot
 logging_setup.py       Structured logging + correlation IDs (LOG_LEVEL/LOG_FORMAT/LOG_FILE)

docs/PLUGIN_AUTHORING.md

@@ -6,7 +6,7 @@ This guide is the entry point. Each topic below has a dedicated doc — read wha
 
 ## Quickstart
 
-```
+```text
 plugins/my_plugin/
 ├── plugin.json          Manifest (required) — see docs/plugin-manifest.md
 ├── screen.html          Optional — markup mounted at #plugin-my_plugin

docs/plugin-logging.md

@@ -44,7 +44,7 @@ That logger inherits from the root `slopsmith` logger, which is configured by `l
 
 Look for your plugin's logger name in the console output:
 
-```
+```text
 INFO     slopsmith.plugin.my_plugin: plugin ready
 ```
 

docs/testing-plugins.md

@@ -4,7 +4,7 @@ Slopsmith has three test surfaces — Python unit/integration tests (pytest), JS
 
 ## Test layout
 
-```
+```text
 tests/
 ├── conftest.py          Shared pytest fixtures (isolate_logging)
 ├── test_plugins.py      Plugin loader + load_sibling + collision tests (includes reset_plugin_state)

docs/websocket-protocol.md

@@ -9,7 +9,7 @@ Each connection receives the following JSON frames, roughly in this order:
 | Message | Shape | Description |
 |---------|-------|-------------|
 | `loading` | `{ type: 'loading', stage }` | Status/progress message during extraction or conversion. |
-| `song_info` | `{ type, title, artist, arrangement, arrangement_index, arrangements, duration, tuning, capo, format, audio_url, audio_error, stems }` | Song metadata. `arrangements` is the full list for the switcher. `audio_url` is `null` when audio is unavailable, in which case `audio_error` is non-null; otherwise `audio_error` is `null`. `stems` is always present — an empty array for non-sloppak songs or sloppak songs with no split stems. `tuning` is an array (6 for guitar, 4 for bass). |
+| `song_info` | `{ type, title, artist, arrangement, arrangement_index, arrangements, duration, tuning, capo, format, audio_url, audio_error, stems }` | Song metadata. `arrangements` is the full list for the switcher. `audio_url` is `null` when audio is unavailable, in which case `audio_error` is non-null; otherwise `audio_error` is `null`. `stems` is always present — an empty array for non-sloppak songs or sloppak songs with no split stems. `tuning` is an array whose length depends on the source arrangement (typically 6 for guitar, 4 for bass, but extended-range GP imports can be 7/8 for guitar or 5/6 for bass — use `highway.getStringCount()` for the authoritative count). |
 | `beats` | `{ type, data: [{ time, measure }] }` | Beat timestamps with measure numbers. |
 | `sections` | `{ type, data: [{ time, name }] }` | Named sections (Intro, Verse, Chorus, etc.). |
 | `anchors` | `{ type, data: [{ time, fret, width }] }` | Fret zoom anchors. |

schema/plugin.schema.json

@@ -92,8 +92,8 @@
           "type": "array",
           "items": {
             "type": "string",
-            "not": { "pattern": "^/|^[a-zA-Z]:|\\\\|(^|/)\\.\\.(/|$)" },
+            "not": { "pattern": "^/|^[a-zA-Z]:|\\\\|(^|/)\\.\\.(/|$)|//|(^|/)\\.(/|$)|^\\." },
-            "description": "Relpath under context['config_dir']. No abs paths, no '..', no backslashes. Trailing '/' denotes a directory (recurse)."
+            "description": "Relpath under context['config_dir']. No abs paths, no '..', no '//', no './', no leading dotfiles, no backslashes. Mirrors the runtime _validate_relpath rules in plugins/__init__.py so a schema-valid manifest is also load-time-valid. Trailing '/' denotes a directory (recurse)."
           },
           "uniqueItems": true,
           "description": "Opt-in for Settings export/import (slopsmith#113). Files included in user-triggered backups. See docs/plugin-manifest.md."
@@ -108,10 +108,10 @@
           "type": "array",
           "items": {
             "type": "string",
-            "not": { "pattern": "^/|^[a-zA-Z]:|\\\\|(^|/)\\.\\.(/|$)" }
+            "not": { "pattern": "^/|^[a-zA-Z]:|\\\\|(^|/)\\.\\.(/|$)|//|(^|/)\\.(/|$)|^\\." }
           },
           "uniqueItems": true,
-          "description": "Files copied verbatim into plugins/<id>/<relpath> inside the diagnostics bundle."
+          "description": "Files copied verbatim into plugins/<id>/<relpath> inside the diagnostics bundle. Path rules match the settings.server_files pattern (no abs paths, no '..', no '//', no './', no leading dotfiles, no backslashes)."
         },
         "callable": {
           "type": "string",