HVE Core is a collection of agents, prompts, coding instructions, and skills for building repeatable software-development workflows with GitHub Copilot. It is intended for individuals and teams that want structured AI-assisted research, planning, implementation, and review, while the catalogue entries provide many of its reusable workflow components.
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 microsoft/hve-core --skill video-to-gifgit clone --depth 1 https://github.com/microsoft/hve-coreWrote 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/microsoft/hve-core/video-to-gif)<a href="https://agentmods.dev/skills/microsoft/hve-core/video-to-gif"><img src="https://agentmods.dev/badge/skills/microsoft/hve-core/video-to-gif/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/microsoft/hve-core/video-to-gif"><img src="https://agentmods.dev/badge/skills/microsoft/hve-core/video-to-gif.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 4 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Tool Misuse · line 43 Tool calls are chained to bypass individual safety checks or escalate capabilities beyond what any single tool call would allow.Fix: Limit tool chaining depth and validate the output of each tool before passing it to the next. Require explicit user approval for multi-step chains.
- medium Privilege Escalation · line 43 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Privilege Escalation · line 332 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Excessive Agency · line 168 Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
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 | $0.00016 | $0.02683 |
| Opus 5.5 | $0.00006 | $0.01073 |
| Sonnet 5.5 | $0.00003 | $0.00537 |
| Haiku 4.5 | $0.00002 | $0.00268 |
Grade B, and why
video-to-gif scanned grade B with 1 finding 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt update && sudo apt install ffmpeg How it starts
The opening of the file, as written. The whole thing — 352 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Video-to-GIF Conversion Skill
This skill converts video files to optimized GIF animations using FFmpeg two-pass palette optimization.
Overview
The two-pass conversion process generates superior quality GIFs compared to single-pass approaches. Pass one analyzes the video and creates an optimized color palette. Pass two applies that palette to produce the final GIF with better color fidelity and smaller file sizes.
Response Format
After successful conversion, include a file link to the GIF in the response with the absolute file path:
/absolute/path/to/filename.gif
This allows the user to open the file and review it.
Prerequisites
FFmpeg is required and must be available in your system PATH.
macOS
brew install ffmpeg
Linux (Debian/Ubuntu)
sudo apt update && sudo apt install ffmpeg
Windows
Using Chocolatey:
choco install ffmpeg
Using winget:
winget install FFmpeg.FFmpeg
Verify installation:
ffmpeg -version
Quick Start
Convert a video using default settings (10 FPS, 1280px width, sierra2_4a dithering):
scripts/convert.sh input.mp4
scripts/convert.ps1 -InputPath input.mp4
Output saves to input.gif by default.
File Search Behavior
When a filename is provided without a full path, the script searches in this order:
- Current working directory
- Workspace root (if inside a project)
~/Movies/(macOS) or~/Videos/(Linux)~/Downloads/~/Desktop/
This allows natural commands like convert.sh demo.mov without specifying full paths.
HDR Handling
The script automatically detects HDR video content via ffprobe by checking for BT.2020 color primaries or SMPTE 2084 transfer characteristics. When HDR is detected, tonemapping is applied automatically to produce SDR-compatible GIF output with proper color preservation.
Use --tonemap to select the tonemapping algorithm:
| Algorithm | Characteristics |
|---|---|
| hable | Filmic curve, good highlight rolloff (default) |
| reinhard | Preserves more color saturation |
| mobius | Similar to reinhard with better highlights |
| bt2390 | ITU standard, more conservative |
What ships with it
7 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 Changed · +5 lines 045ef15b23ff
- 2mo ago First seen · 347 lines · 16 tokens per session scan B 5fe871c364cf
video-to-gif is a skill published in the GitHub repository microsoft/hve-core (1,606 stars, last pushed today), licensed MIT. It adds 16 tokens to every session and 2,683 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
video-to-gif compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| video-to-gifmicrosoft/hve-core | Skill | 1.6k | today | MIT | B | 16 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 134k | today | Apache-2.0 | A | 113 | Codex |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | yesterday | MIT | A | 200 | Claude Code, Codex |
| playwright-climicrosoft/playwright | Skill | 100k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 314k | 4d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |