google-gemini/gemini-skills is a collection of reusable skills that give coding agents context for the Gemini API, SDK, and model interactions. Developers use it when building applications powered by Gemini, and the catalogue entries are skills for those development workflows.
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 google-gemini/gemini-skills --skill gemini-omni-flash-apigit clone --depth 1 https://github.com/google-gemini/gemini-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/google-gemini/gemini-skills/gemini-omni-flash-api)<a href="https://agentmods.dev/skills/google-gemini/gemini-skills/gemini-omni-flash-api"><img src="https://agentmods.dev/badge/skills/google-gemini/gemini-skills/gemini-omni-flash-api/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/google-gemini/gemini-skills/gemini-omni-flash-api"><img src="https://agentmods.dev/badge/skills/google-gemini/gemini-skills/gemini-omni-flash-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Agent Snooping · line 36 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.00107 | $0.06158 |
| Opus 5 | $0.00053 | $0.03079 |
| Sonnet 5 | $0.00021 | $0.01232 |
| Haiku 4.5 | $0.00011 | $0.00616 |
Grade A, and why
gemini-omni-flash-api 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 7d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- gemini-omni-flash-api — 86% identical, 55 lines differ
How it starts
The opening of the file, as written. The whole thing — 451 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gemini Omni Flash Skill
This skill uses the Gemini Omni 1.1 Flash model (gemini-omni-1.1-flash) to perform text to video generation, image to video generation (first frame and last frame transitions), video extensions (up to 40s), and video editing.
[!WARNING] Important Regional Restrictions: Uploading videos to use for video edits or extensions is NOT available in the EEA, Switzerland, the United Kingdom, and some US states. If a video-to-video edit completes quickly with empty outputs (
total_output_tokens: 0or no video content), it is likely due to this restriction.
Core capabilities
- Text to video: Generating videos from a text prompt.
- First frame to video: Generating videos from a starting image (
--first-frame). - First and last frame transition: Generating videos interpolating between a starting image and a final image (
--first-frameand--last-frame; note:--last-framemust be used with--first-frame). - Video extensions: Extending existing videos by up to 10 seconds per turn, up to a total length of 40 seconds (
--extendor--previous-interaction-id). - Video editing and refinement: Editing existing videos (maximum duration 10 seconds), applying stylistic changes, or performing inpainting/outpainting.
- Image and video referenced generation: Using style, character, or object references from images or videos to guide video generation.
Workflow
-
Analyze request: Determine the target task (e.g., first-frame-to-video, first-and-last-frame transition, video extension, reference-guided editing) and identify any input media assets.
-
Run SDK scripts:
- Directly run the appropriate utility (
scripts/video/generate_video.pyorscripts/upload_file.py). - Configure settings like
--aspect-ratio(e.g.16:9,9:16),--resolution(360p,720p,1080p,4k; default:720p), and--duration(any integer between3and10seconds, e.g.3,5,10). Note:4krequests take longer to generate.
- Directly run the appropriate utility (
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.
- 7d ago Changed 5ec057f58398
- 10d ago Changed a7b7d023637d
- 12d ago First seen · 451 lines · 107 tokens per session scan A 99d56255c081
gemini-omni-flash-api is a skill published in the GitHub repository google-gemini/gemini-skills (4,096 stars, last pushed yesterday), licensed Apache-2.0. It adds 107 tokens to every session and 6,158 once invoked, about $0.0005 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.
Other skills, from other repositories
skill-creator
Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Gemini CLI's capabilities with specialized knowledge, workflows, or tool integrations.
effort
Estimates the implementation effort required to address the given issue.
spec_generator
Generates a structured Workable Spec JSON to guide a Developer Worker.
memory
Expertise in maintaining persistent bot memory, synchronizing with previous sessions via the Task Ledger, and preserving decision logs.
code_explorer
Explores the repository to locate primary source files, coupled UI components, and test files for bug reports or feature requests.
critique
Expertise in auditing and fixing repository scripts and GitHub Actions workflows to ensure technical robustness and security.