Borrowing it
Nothing to install: this file belongs to christosk92/WaveeMusic. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/christosk92/WaveeMusic/main/.claude/skills/wavee-sidebar/SKILL.mdgit clone --depth 1 https://github.com/christosk92/WaveeMusicWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/christosk92/waveemusic/wavee-sidebar)<a href="https://agentmods.dev/skills/christosk92/waveemusic/wavee-sidebar"><img src="https://agentmods.dev/badge/skills/christosk92/waveemusic/wavee-sidebar.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00114 | $0.02371 |
| Opus 5 | $0.00057 | $0.01185 |
| Sonnet 5 | $0.00023 | $0.00474 |
| Haiku 4.5 | $0.00011 | $0.00237 |
Grade A, and why
wavee-sidebar scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Wavee sidebar — the unified extension platform
Scope: src/apps/Wavee.Core/Sidebar/**, src/apps/Wavee/Features/Sidebar/**,
src/apps/Wavee/Actions/Extensibility/** + Actions/{PinActions,WaveeActionDescriptor,ActionIcons}.cs,
and the sidebar test files in src/apps/Wavee.Tests/. General app architecture: the wavee
skill. Engine work: the repo-root fluentgpu skill.
The sidebar shipped as THREE separate pane containers and was unified into ONE. Classic used to be a hand-built body (
WaveeSidebar.ExpandedBody), V3 had its ownLibraryV3Index/List/Row/Railstack, Curated had its own planner+slots. They shared only leaf primitives, so paddings, count badges, section rhythm and motion tripled and drifted (four different left insets, an accent count pill in one mode and quiet numbers in another). There is now one renderer —Features/Sidebar/Pane/SidebarPane.cs— and every mode is a document + aSidebarPaneConfig. If you find yourself adding a mode-specific branch inside the renderer, you are re-creating the bug this architecture exists to prevent.
The 30-second architecture map
Wavee.Core.Sidebar (engine-free, framework-neutral)
SidebarCommand ──► SidebarLayoutReducer ──► SidebarCustomLayout {TemplateId, SidebarSectionSpec[]}
(18 records/20 (pure; pre-image undo) sections carry Display / Items / Query / Extension
undo labels)
│
SidebarPreferences.Dispatch ── undo push ─► LayoutVersion++ ─► autosave
│
── app side ──────────────────────┼────────────────────────────────────────────────────────────
LibraryStore / HistoryStore / │
PlayLogStore / PlaybackBridge │ registries
Spotify feed services │ WaveeExtensionRegistry
│ │ ├─ WaveeActionDescriptor (bindable actions, "wavee.play")
ISidebarDataSource adapters │ └─ ISidebarDataSource (row producers, "wavee.library")
│ │
SidebarProjectionBinder ──► SidebarProjectionInput ──► SidebarRowPlanner.Build ──► SidebarRow[]
(the ONE rebuild driver) (aliases binder buffers) (pure, POD, 13 row kinds)
│
┌───────────────────────────────────────────┴──────────────┐
│ SidebarPane (the ONE renderer) │
│ ItemsView.CreateBound → SidebarPaneSlot (per-row Comp) │
│ + SidebarPaneRail (56-DIP) + SidebarPaneConfig seam │
└──────────────────────────────────────────────────────────┘
Classic Library V3 Curated
locked built-in doc synthesized ephemeral doc the user's doc
SidebarBuiltInDocuments LibraryV3Document.Build prefs.Layout (persisted)
+ read-only config + LibraryV3Chrome as Head + the customizer page
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 123 lines · 114 tokens per session scan A 78872899e6b3
wavee-sidebar is a skill published in the GitHub repository christosk92/WaveeMusic (50 stars, last pushed 2d ago), licensed MIT. It adds 114 tokens to every session and 2,371 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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