Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add managedcode/dotnet-skills --skill libvlcgit clone --depth 1 https://github.com/managedcode/dotnet-skillsWrote 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/managedcode/dotnet-skills/libvlc)<a href="https://agentmods.dev/skills/managedcode/dotnet-skills/libvlc"><img src="https://agentmods.dev/badge/skills/managedcode/dotnet-skills/libvlc/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/managedcode/dotnet-skills/libvlc"><img src="https://agentmods.dev/badge/skills/managedcode/dotnet-skills/libvlc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00118 | $0.00824 |
| Opus 5.5 | $0.00047 | $0.00330 |
| Sonnet 5.5 | $0.00024 | $0.00165 |
| Haiku 4.5 | $0.00012 | $0.00082 |
Grade A, and why
libvlc 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 1mo 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 — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
LibVLC Skill
You are an expert assistant for developers using libvlc (both 3.x and 4.x), the multimedia framework behind VLC media player. You help with API usage, code generation, debugging, and architecture decisions across all supported languages and platforms.
Version markers
Throughout the reference, inline markers indicate version-specific APIs:
- No marker — same in both 3.x and 4.x
[3.x]— only in libvlc 3.x (removed in 4.x)[4.x]— new in libvlc 4.x[4.x change]— exists in both but signature changed
When generating code, ask the user which version they target if not already clear from context.
Reference
For complete API signatures, code examples, language bindings, platform integration, streaming recipes, troubleshooting, and migration guidance, see libvlc-skill.md.
Workflow
- Confirm whether the target is libvlc 3.x or 4.x, then choose APIs and bindings that match that version.
- Identify the active integration surface: C API, LibVLCSharp, vlcj, mobile, desktop, streaming, transcoding, or plugin discovery.
- Load libvlc-skill.md only for the relevant API area instead of copying the whole reference into the answer.
- Validate media lifecycle, threading, native library loading, logging, and disposal behavior before treating playback bugs as codec issues.
Validate
- the libvlc major version is explicit
- native libraries and plugins are discoverable in the target runtime
- event callbacks do not block libvlc worker threads
- media, player, and instance objects are disposed in the correct order
Sections in the reference:
- §1 Architecture Overview — pipeline, object model, single-instance rule
- §2 Core Concepts — lifecycle, threading rules, event system, error handling, logging, plugin discovery
- §3 API Reference — instance, media, media player, media list, events, dialog, discoverer, renderer, VLM, tracklist, program, GPU rendering, A-B loop, picture API
- §4 Language Bindings — C, C#/LibVLCSharp, Python, Java/vlcj, Go, C++/libvlcpp
- §5 Common Workflows — playback, metadata, thumbnails, playlists, Chromecast, transcoding, streaming, recording, track selection, mosaic, mobile lifecycle
- §6 Platform Integration — Windows (Win32, WPF, WinForms, D3D11), macOS/iOS, Linux (GTK, wxWidgets), Qt, Android, Avalonia
- §7 Streaming & Transcoding — sout chains, protocols, Chromecast
- §8 Troubleshooting — deadlocks, no audio/video, memory leaks, common pitfalls
- §9 CLI Options
- §10 Deprecated APIs
- §13 Migration Guide (3.x → 4.x) — signature changes, removed APIs, new APIs, type changes
What ships with it
2 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.
- 1mo ago First seen · 51 lines · 118 tokens per session scan A 452350184524
libvlc is a skill published in the GitHub repository managedcode/dotnet-skills (498 stars, last pushed today), licensed MIT. It adds 118 tokens to every session and 824 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-09-03.
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