{"slug":"henkisdabro-ffmpeg-cli","name":"ffmpeg-cli","description":"FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor).","long_description":"---\nname: ffmpeg-cli\ndescription: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor).\nallowed-tools: Bash, Read, Glob, Grep, Write, Edit\n---\n\n# FFmpeg CLI Reference\n\n## Contents\n\n- [Dependencies](#dependencies)\n- [Glossary of flags and filters](#glossary-of-flags-and-filters)\n- [Converting formats](#converting-formats)\n- [Resizing and padding](#resizing-and-padding)\n- [Trim by time](#trim-by-time)\n- [Verification and inspection](#verification-and-inspection)\n- [Reference files](#reference-files)\n\n## Dependencies\n\nVerify ffmpeg is installed:\n\n```sh\nffmpeg -version\n```\n\nInstall if missing:\n\n```sh\n# macOS\nbrew install ffmpeg\n\n# Ubuntu/Debian\nsudo apt install ffmpeg\n\n# Windows (scoop)\nscoop install ffmpeg\n```\n\n## Glossary of flags and filters\n\n[Filtering reference](https://ffmpeg.org/ffmpeg-filters.html#Filtering-Introduction)\n\n| Flag/Filter | Purpose |\n|---|---|\n| `-vf` (also `-filter:v`) | Video filter |\n| `-af` (also `-filter:a`) | Audio filter |\n| `-filter_complex` | Complex filter graph for multi-stream filtering |\n| `[0]` | All streams from first input (0-based) |\n| `[0:v]` | Video stream from first input |\n| `[1:a]` | Audio stream from second input |\n| `0:v:0` | First input, first video stream |\n| `0:a:1` | First input, second audio stream |\n| `[name]` | Named stream, used with `-filter_complex` |\n| `-map [name]` | [Select stream for output](https://trac.ffmpeg.org/wiki/Map) |\n| `-y` | Auto-overwrite output files without confirmation |\n\n[Expression evaluations](https://ffmpeg.org/ffmpeg-all.html#Expression-Evaluation): `if`, `lte`, `gte` and more.\n\n## Converting formats\n\nRemux MP4 to MKV (no re-encoding):\n\n```sh\nffmpeg -i input.mp4 -c copy output.mkv\n```\n\nMKV and MP4 are both containers for H264/H265 video and AAC/MP3 audio. Video quality is determined by the codec, not the container. MKV supports multiple video streams; MP4 has wider device support.\n\nRemux MP4 to MOV:\n\n```sh\nffmpeg -i input.mp4 -c copy output.mov\n```\n\nEncode MP4 to AVI (re-encodes):\n\n```sh\nffmpeg -i input.mp4 output.avi\n```\n\n## Resizing and padding\n\nUpscale to 1080x1920, preserve aspect ratio, black padding:\n\n```sh\nffmpeg -i input.mp4 -vf \"scale=w=1080:h=1920:force_original_aspect_ratio=decrease,pad=1080:1920:(ow-iw)/2:(oh-ih)/2:color=black,setsar=1:1\" output.mp4\n```\n\n**scale** options:\n\n- `force_original_aspect_ratio=decrease` - auto-decrease output dimensions to fit aspect ratio\n- `force_original_aspect_ratio=increase` - auto-increase dimensions\n- `scale=w=1080:h=-1` - let ffmpeg pick correct height for aspect ratio\n- `scale=w=1080:h=-2` - force dimensions divisible by 2\n\n[scale reference](https://trac.ffmpeg.org/wiki/Scaling)\n\n**pad** options:\n\n- `pad=width:height:x:y:color` - x:y is top-left corner position\n- `(ow-iw)/2:(oh-ih)/2` centres the video; negative values also centre\n- [pad reference](https://ffmpeg.org/ffmpeg-filters.html#pad)\n\n**setsar=1:1** ensures 1:1 pixel aspect ratio. Prevents ffmpeg from compensating for ratio changes. [setsar reference](https://ffmpeg.org/ffmpeg-filters.html#setdar_002c-setsar)\n\nTwo scaled outputs from one input (horizontal + vertical with logo overlay):\n\n```sh\nffmpeg -i input.mp4 -i logo.png \\\n  -filter_complex \"[0:v]split=2[s0][s1]; \\\n    [s0]scale=w=1920:h=1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2:color=black,setsar=1:1[out1]; \\\n    [s1]scale=w=720:h=1280:force_original_aspect_ratio=decrease,pad=720:1280:(ow-iw)/2:(oh-ih)/2:color=black,setsar=1:1[s2]; \\\n    [s2][1]overlay=(main_w-overlay_w)/2:(main_w-overlay_w)/5[out2]\" \\\n  -map [out1] -map 0:a output_youtube.mp4 \\\n  -map [out2] -map 0:a output_shorts.mp4\n```\n\n## Trim by time\n\n```sh\nffmpeg -i input.mp4 -ss 00:00:10 -to 00:00:25 output.mp4\n```\n\nFor faster but less accurate trimming, see the **Input/output seeking** section in `references/encoding-and-settings.md`. For the `-c copy` trade-offs when trimming, see `references/core-concepts.md`.\n\n## Verification and inspection\n\nList supported formats:\n\n```sh\nffmpeg -formats\n```\n\nList supported codecs:\n\n```sh\nffmpeg -codecs\n```\n\n### ffprobe\n\n[ffprobe](https://ffmpeg.org/ffprobe.html) provides structured metadata about media files.\n\nShow detailed stream information:\n\n```sh\nffprobe -show_streams -i input.mp4\n```\n\nVerify moov atom position (faststart):\n\n```sh\nffprobe -v trace -i input.mp4\n```\n\nLook for `type:'moov'` near the beginning of output to confirm faststart is applied.\n\n## Reference files\n\nLoad these on demand with the Read tool when the task requires deeper coverage.\n\n| File | Topics |\n|---|---|\n| `references/core-concepts.md` | `-c copy` (remux vs transcode), input/output seeking, encoding quick ref (H264/H265/VP9 CRF ranges), GPU acceleration overview, `format=yuv420p`, `-movflags +faststart` |\n| `references/audio-processing.md` | Replace audio, extract audio, mix audio, combine MP3 tracks, crossfade, change audio format, merge and normalise |\n| `references/advanced-editing.md` | Playback speed, FPS change, jump cuts, video cropping for social, drawtext overlay, subtitles (burn/embed/extract), combine media (overlay, logo, background, concat intro/main/outro, vstack) |\n| `references/asset-generation.md` | Image to video, slideshow with fade, Ken Burns (zoompan), GIFs, video compilation with fades, thumbnails (single/multiple/scene), image thumbnails, storyboards (scene tile/keyframe/Nth frame) |\n| `references/encoding-and-settings.md` | Optimised daily command, H264 (libx264) deep-dive, H265 (libx265) Apple compat, VP9 (libvpx-vp9) constant quality, 1-pass vs 2-pass, `-c copy` detailed, seeking detailed, GPU detailed (Nvidia/Intel/AMD) |\n","tagline":"FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitl","category":"design-creative","tags":["agent-skill"],"author":"henkisdabro","verified":false,"attribution":{"status":"registry_indexed","statusLabel":"Registry indexed","shortLabel":"REGISTRY INDEXED","sourceLabel":"recursive skill source sync","sourceDetail":"henkisdabro/wookstar-claude-plugins","creatorName":"henkisdabro","creatorUrl":"https://github.com/henkisdabro","sourceUrl":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","indexedBy":"OpenAgentSkill community index","claimUrl":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli#claim-this-skill","claimCta":"Claim this skill","trustNote":"This listing was indexed from public sources and is not marked official until a maintainer claim is approved.","publicNote":"Attribution links to the public repository or creator profile. 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require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata","No real agent outcome reports yet","Human review required before unattended installation"],"evidence":{"stars":"83 GitHub stars","repoActivity":"83 stars, 11 forks","lastPushed":"1d since push","license":"NOASSERTION","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","install":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet","agentProvenScore":0,"outcomeConfidence":"0%","installPolicy":"human_review_before_install"},"installReadiness":{"ready":true,"command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","1d since push","Financial domain: human review is required before use in a live investment workflow.","Trust Score v5 requires review or sandbox-only use before install."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Compare alternatives before installing."},"outcome_loop":{"version":"openagentskill-agent-outcome-v3","required_after_install":true,"endpoint":"/api/agent/outcome","method":"POST","event_id_source":"feedback.event_id, install_receipt.resolve_event_id, or decision_packet.outcome_feedback.event_id","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"required_fields":["event_id","skill_slug","task"],"quality_fields":["task_success","output_quality","error_type","human_review_required","used_in_production","workspace","evidence_url","time_to_useful_ms"],"ranking_inputs_updated":["Trust Score v5 outcome confidence","Agent Proven Score","Resolve ranking task-fit evidence","Skill detail machine-readable metadata","Outcome leaderboard"]},"agent_contract":{"suited_tasks":["design-creative","agent-skill"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"install_command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","trust_score":63,"trust_version":"trust-score-v5","risk_level":"medium","do_not_use_when":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"before_install":["Read the audit page and machine-readable metadata.","Confirm the install command, license, and permission surface fit the workspace.","Get explicit human approval or choose an alternative before installing."],"after_run":["Report the outcome to /api/agent/outcome using the resolve event id.","Include output_quality, workspace, human_review_required, and evidence_url when available.","Re-resolve before broad production rollout."]},"bestFor":["design-creative","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":71,"tier":"review","label":"Manual review","summary":"Potentially useful, but at least one trust signal needs human inspection."}}},"trust_score_v4":{"version":"trust-score-v4","score":71,"tier":"review","label":"Manual review","summary":"Potentially useful, but at least one trust signal needs human inspection.","recommendedAction":"Inspect the repository, license, and recent activity before connecting it to agent workflows.","dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":48,"weight":0.13,"status":"warn","detail":"83 GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":48,"weight":0.08,"status":"warn","detail":"83 stars, 11 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"1d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"NOASSERTION"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":62,"weight":0.12,"status":"info","detail":"command execution surface, external package install surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":62,"weight":0.07,"status":"info","detail":"shell or command execution, filesystem or document access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli"},{"id":"review_status","label":"Review status","score":66,"weight":0.05,"status":"info","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"warn","label":"GitHub adoption","detail":"83 GitHub stars"},{"status":"warn","label":"Stars/forks activity","detail":"83 stars, 11 forks; issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"1d since push"},{"status":"pass","label":"License clarity","detail":"NOASSERTION"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"info","label":"Dependency/runtime risk","detail":"command execution surface, external package install surface"},{"status":"pass","label":"Install availability","detail":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"info","label":"Permission surface","detail":"shell or command execution, filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli"},{"status":"info","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"pass","label":"OpenAgentSkill usage","detail":"2 views, 0 install copies"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Install command has no obvious high-risk pattern"],"warnings":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"],"evidence":{"stars":"83 GitHub stars","repoActivity":"83 stars, 11 forks","lastPushed":"1d since push","license":"NOASSERTION","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","install":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"installReadiness":{"ready":true,"command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","policy":"human_review_before_install","label":"Human review before install","notes":["Install path is available","Repository evidence is available","License is declared","No Agent Proven outcome evidence yet","1d since push","Financial domain: human review is required before use in a live investment workflow."]},"agentCompatibility":["Codex","Claude Code","Cursor","OpenAgentSkill CLI"],"riskSummary":{"level":"medium","label":"Review before production","notes":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Human review or sandbox validation is required before automatic installation."},"bestFor":["design-creative","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace","Autonomous investment, trading, tax, or suitability decisions without a qualified human review"],"knownRisks":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":49,"level":"avoid_auto_install","label":"Avoid automatic install","safety_tier":{"tier":"experimental","label":"Experimental","badge":"EXPERIMENTAL","summary":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","auto_install_policy":"review","reasons":["High-risk permission hints: Shell or command execution","49/100 agent safety score"]},"auto_install_allowed":false,"human_review_required":true,"blocked":false,"audit_risk":"needs_review","permission_hints":[{"id":"shell","label":"Shell or command execution","reason":"Skill metadata references terminal, CLI, shell, subprocess, or command execution workflows.","severity":"high"},{"id":"network","label":"Network access","reason":"Skill likely fetches remote pages, APIs, repositories, or external services.","severity":"medium"},{"id":"filesystem","label":"Filesystem access","reason":"Skill may read or write project files, documents, generated artifacts, or local workspace state.","severity":"medium"}],"policy_warnings":["High-risk permission hints: Shell or command execution","Financial research output is not financial advice; require human review before any live investment decision"],"constraints_applied":{"max_risk":"medium","needs_install_command":true,"min_stars":0}},"safety_gate":{"tier":"experimental","label":"Experimental","badge":"EXPERIMENTAL","auto_install_policy":"review","auto_install_allowed":false,"blocked":false,"human_review_required":true,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","reasons":["High-risk permission hints: Shell or command execution","49/100 agent safety score"]},"eval":{"version":"openagentskill-skill-eval-v1","status":"review","score":68,"risk_level":"medium","decision":{"recommendation":"manual_review","reason":"Test manually in an isolated workspace and compare against safer alternatives.","auto_install_allowed":false,"policy":"review","human_review_required":true},"blockers":[],"warnings":["Trust score: Potentially useful, but at least one trust signal needs human inspection.","Audit score: Needs review","Agent safety gate: Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","Permission surface: shell or command execution, filesystem or document access","High-risk permission hints: Shell or command execution","Financial research output is not financial advice; require human review before any live investment decision","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":84,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate ffmpeg-cli before installing it in an agent workflow","design-creative","Multimodal media workflows; Claude Code teams; builders willing to evaluate younger projects"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli"]},{"id":"trust_score","label":"Trust score","status":"warn","score":71,"required_for_auto_install":true,"detail":"Potentially useful, but at least one trust signal needs human inspection.","evidence":["Manual review","83 GitHub stars","NOASSERTION"]},{"id":"audit_score","label":"Audit score","status":"warn","score":77,"required_for_auto_install":true,"detail":"Needs review","evidence":["Financial research output is not financial advice; require human review before any live investment decision"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":49,"required_for_auto_install":true,"detail":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","evidence":["Test manually in an isolated workspace and compare against safer alternatives.","High-risk permission hints: Shell or command execution"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"pass","score":86,"required_for_auto_install":false,"detail":"Metadata includes enough usage and workflow context","evidence":["Strong README/SKILL.md context"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"NOASSERTION","evidence":["NOASSERTION"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"1d since push","evidence":["1d since push"]},{"id":"permission_surface","label":"Permission surface","status":"warn","score":62,"required_for_auto_install":true,"detail":"shell or command execution, filesystem or document access","evidence":["Shell or command execution: high","Network access: medium","Filesystem access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli/evals","api":"/api/agent/evals?slug=henkisdabro-ffmpeg-cli","text":"/api/agent/evals?slug=henkisdabro-ffmpeg-cli&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"henkisdabro-ffmpeg-cli","name":"ffmpeg-cli","description":"FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor).","category":"design-creative","url":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","github_repo":"henkisdabro/wookstar-claude-plugins"},"suited_tasks":["Multimodal media workflows","Claude Code teams","builders willing to evaluate younger projects","Read media metadata","Convert formats","Summarize visual or audio content","Navigate pages","Click and type safely"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install henkisdabro-ffmpeg-cli"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"ffmpeg-cli\" agent skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"ffmpeg-cli\" as a Claude Code skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"ffmpeg-cli\" from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/henkisdabro-ffmpeg-cli/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/henkisdabro-ffmpeg-cli"},"trust":{"score":71,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"83 GitHub stars","repoActivity":"83 stars, 11 forks","lastPushed":"1d since push","license":"NOASSERTION","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","install":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["design-creative","agent-skill"],"known_risks":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":77,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Financial research output is not financial advice; require human review before any live investment decision","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":66,"label":"Promising"},"supply":{"track":"Design and creative production","scenario":"Multimodal media","maintenance":"1d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","High-risk permission hints: Shell or command execution","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars"],"agent_contract":{"task_input":"Use ffmpeg-cli in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 71/100 Manual review","Audit: 77/100 Needs review","Safety: 49/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"henkisdabro-ffmpeg-cli (ffmpeg-cli)","install_command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","risk_summary":"Needs review; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"henkisdabro-ffmpeg-cli","task":"Use ffmpeg-cli in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli","api":"https://www.openagentskill.com/api/agent/skills/henkisdabro-ffmpeg-cli","audit":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=henkisdabro-ffmpeg-cli&task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/henkisdabro-ffmpeg-cli/install","manifest":"https://www.openagentskill.com/api/registry/manifest/henkisdabro-ffmpeg-cli"}},"machine_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"henkisdabro-ffmpeg-cli","name":"ffmpeg-cli","description":"FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor).","category":"design-creative","url":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","github_repo":"henkisdabro/wookstar-claude-plugins"},"suited_tasks":["Multimodal media workflows","Claude Code teams","builders willing to evaluate younger projects","Read media metadata","Convert formats","Summarize visual or audio content","Navigate pages","Click and type safely"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install henkisdabro-ffmpeg-cli"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"ffmpeg-cli\" agent skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"ffmpeg-cli\" as a Claude Code skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"ffmpeg-cli\" from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/henkisdabro-ffmpeg-cli/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/henkisdabro-ffmpeg-cli"},"trust":{"score":71,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"83 GitHub stars","repoActivity":"83 stars, 11 forks","lastPushed":"1d since push","license":"NOASSERTION","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","install":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["design-creative","agent-skill"],"known_risks":["Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"audit":{"score":77,"risk_level":"needs_review","risk_label":"Needs review","warnings":["Financial research output is not financial advice; require human review before any live investment decision","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"safety_gate":{"tier":"experimental","label":"Experimental","auto_install_policy":"review","auto_install_allowed":false,"human_review_required":true,"blocked":false,"recommended_action":"Test manually in an isolated workspace and compare against safer alternatives."},"quality":{"score":66,"label":"Promising"},"supply":{"track":"Design and creative production","scenario":"Multimodal media","maintenance":"1d since push","risk":"Needs review"},"alternative_skills":[],"do_not_use_when":["teams that need a vendor-supported SLA","production agents without a repository review","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","High-risk permission hints: Shell or command execution","Financial research output is not financial advice; require human review before any live investment decision","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars"],"agent_contract":{"task_input":"Use ffmpeg-cli in an agent workflow","recommended_action":"Test manually in an isolated workspace and compare against safer alternatives.","install_policy":"review","minimum_review_before_use":["Trust: 71/100 Manual review","Audit: 77/100 Needs review","Safety: 49/100 Avoid automatic install","Review repository, license, install command, and permission surface before production use."],"expected_agent_output":{"selected_skill":"henkisdabro-ffmpeg-cli (ffmpeg-cli)","install_command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","risk_summary":"Needs review; Experimental; Review before production","verification_result":"Report the smallest successful task, files touched, warnings, and any missing setup."}},"outcome_feedback":{"endpoint":"https://www.openagentskill.com/api/agent/outcome","method":"POST","requires_resolve_event_id":true,"event_id_source":"Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.","expected_outcomes":["success","failed","not_relevant","blocked_by_risk","setup_required"],"payload_template":{"event_id":"<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>","skill_slug":"henkisdabro-ffmpeg-cli","task":"Use ffmpeg-cli in an agent workflow","agent":"codex","outcome":"success","install_used":true,"risk_blocked":false,"setup_required":false,"task_success":true,"output_quality":4,"error_type":null,"human_review_required":false,"workspace":"sandbox","time_to_useful_ms":120000,"notes":"Report the smallest successful task, setup friction, files touched, and risk notes."}},"endpoints":{"web":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli","api":"https://www.openagentskill.com/api/agent/skills/henkisdabro-ffmpeg-cli","audit":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli/audit","eval":"https://www.openagentskill.com/api/agent/evals?slug=henkisdabro-ffmpeg-cli&task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&max_risk=medium","resolve":"https://www.openagentskill.com/api/agent/resolve?task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&agent=codex&max_risk=medium","receipt":"https://www.openagentskill.com/api/agent/receipt?task=Use%20ffmpeg-cli%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text","install":"https://www.openagentskill.com/api/skills/henkisdabro-ffmpeg-cli/install","manifest":"https://www.openagentskill.com/api/registry/manifest/henkisdabro-ffmpeg-cli"}},"supply_profile":{"track":{"slug":"design","label":"Design and creative production","shortLabel":"Design","description":"Design assets, images, video, audio, multimodal media, presentation, and creative production skills."},"scenario":{"label":"Multimodal media","description":"I need my agent to process images, video, or audio and extract useful information.","useCases":[{"slug":"multimodal-media","title":"Multimodal media"},{"slug":"browser-automation","title":"Browser automation"},{"slug":"workflow-automation","title":"Workflow automation"}]},"applicableAgents":["Claude Code","CLI","Codex","Cursor"],"install":{"ready":true,"command":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","primaryTarget":"CLI","targetCount":4},"githubQuality":{"stars":83,"starsLabel":"83","forks":11,"license":"NOASSERTION","qualityScore":66,"trustScore":71,"auditScore":77},"maintenance":{"status":"fresh","label":"1d since push","daysSincePush":1,"lastPushedAt":"2026-08-21T10:16:39+00:00"},"risk":{"level":"needs_review","label":"Needs review","requiresReview":true,"notes":["Financial research output is not financial advice; require human review before any live investment decision","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars"]},"coverageTags":["Design","Multimodal media","design-creative","agent-skill"]},"audit":{"audit_score":77,"risk_level":"needs_review","risk_label":"Needs review","quality_score":66,"trust_score":71,"maintenance_score":100,"security_score":76,"install_score":92,"warnings":["Financial research output is not financial advice; require human review before any live investment decision","Repository license is NOASSERTION – no license file or explicit license statement found in the repository, which creates legal ambiguity for usage and redistribution.","Financial research output is not financial advice; require human review before any live investment decision.","Quality score needs review","GitHub adoption: 83 GitHub stars","Stars/forks activity: 83 stars, 11 forks; issue activity unavailable in current metadata"]},"quality_signals":{"model":"v2","star_score":13.47,"usage_score":0,"review_score":4.95,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"multimodal-media","title":"Multimodal media","url":"https://www.openagentskill.com/use-cases/multimodal-media"},{"slug":"browser-automation","title":"Browser automation","url":"https://www.openagentskill.com/use-cases/browser-automation"},{"slug":"workflow-automation","title":"Workflow automation","url":"https://www.openagentskill.com/use-cases/workflow-automation"},{"slug":"design-creative","title":"Design and creative","url":"https://www.openagentskill.com/use-cases/design-creative"}],"stacks":[{"slug":"content-growth-agent","title":"Content growth agent","url":"https://www.openagentskill.com/collections/content-growth-agent"},{"slug":"frontend-product-ui","title":"Frontend and UI","url":"https://www.openagentskill.com/collections/frontend-product-ui"},{"slug":"web-data-pipeline","title":"Web data pipeline","url":"https://www.openagentskill.com/collections/web-data-pipeline"}],"install":"npx skills add henkisdabro/wookstar-claude-plugins --skill ffmpeg-cli","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.2.1/openagentskill-0.2.1.tgz install henkisdabro-ffmpeg-cli","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"ffmpeg-cli\" agent skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Read its SKILL.md or equivalent instructions first, install only the files needed for this workspace, and summarize any required setup before using it. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"codex\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"ffmpeg-cli\" as a Claude Code skill from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this prompt to ask Claude Code to add the skill and explain the local activation steps.","copyLabel":"Copy prompt"},{"id":"cursor","label":"Cursor","title":"Cursor rule prompt","kind":"agent-prompt","value":"Turn \"ffmpeg-cli\" from https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: FFmpeg CLI reference for video and audio processing, format conversion, filtering, and media automation. Use when converting video formats, resizing or cropping video, trimming by time, replacing or extracting audio, mixing audio tracks, overlaying text or images, burning subtitles, creating GIFs, generating thumbnails, building slideshows, changing playback speed, encoding with H264/H265/VP9, setting CRF/bitrate, using GPU acceleration, creating storyboards, or running ffprobe. Covers filter_complex, stream selectors, -map, -c copy, seeking, scale, pad, crop, concat, drawtext, zoompan, xfade. Do NOT use for image-only processing (use ImageMagick), live-streaming server setup (use OBS/nginx-rtmp), or NLE-style timeline editing (use a video editor). After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"henkisdabro-ffmpeg-cli\",\"task\":\"Install ffmpeg-cli\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes.","description":"Use this when installing as Cursor project rules or reusable agent instructions.","copyLabel":"Copy prompt"}],"repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","github_repo":"henkisdabro/wookstar-claude-plugins","version":"1.0.0","license":"NOASSERTION","urls":{"web":"https://www.openagentskill.com/skills/henkisdabro-ffmpeg-cli","repository":"https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/ffmpeg/skills/ffmpeg-cli","api":"/api/agent/skills/henkisdabro-ffmpeg-cli","install_api":"/api/skills/henkisdabro-ffmpeg-cli/install"},"meta":{"created_at":"2026-08-21T11:35:57.96146+00:00","updated_at":"2026-08-21T11:35:57.96146+00:00","agent_friendly":true}}