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 calesthio/generative-media-skills --skill editing-montagegit clone --depth 1 https://github.com/calesthio/generative-media-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/calesthio/generative-media-skills/editing-montage)<a href="https://agentmods.dev/skills/calesthio/generative-media-skills/editing-montage"><img src="https://agentmods.dev/badge/skills/calesthio/generative-media-skills/editing-montage/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/calesthio/generative-media-skills/editing-montage"><img src="https://agentmods.dev/badge/skills/calesthio/generative-media-skills/editing-montage.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 | $0.00105 | $0.06688 |
| Opus 5 | $0.00053 | $0.03344 |
| Sonnet 5 | $0.00021 | $0.01338 |
| Haiku 4.5 | $0.00011 | $0.00669 |
Grade A, and why
editing-montage 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 13d 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 — 546 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Editing and montage direction
Use this skill when the edit itself determines whether a video works. Your job is to make decisions about sequence, duration, shot function, rhythm, continuity, audio/visual relationship, platform fit, and revision logic. Do not treat editing as "put the clips in order." Treat it as the craft of controlling what the viewer notices, understands, feels, and remembers.
Work provider-independently. The source clips may be human-shot footage, generated clips, stills animated in a composition engine, screen recordings, avatar footage, stock, captions, product UI, diagrams, or music. The same edit principles apply, but generated media needs stricter provenance, continuity, and QA because shots may not share stable identity, lighting, geometry, text, or physics.
Evidence classes to keep separate
Documented facts:
- Film-analysis sources commonly describe editing as the relationship between shots and the construction of graphic, rhythmic, spatial, and temporal relationships. Source: Yale Film Analysis, "Part 4: Editing" (https://filmanalysis.yale.edu/editing/).
- J-cuts introduce the next shot or scene's audio before the visual cut; L-cuts let prior audio continue after the visual cut. Source: DINFOS Pavilion, "How to Edit Video with the J-Cut and L-Cut," last verified 2025-01-16 (https://pavilion.dinfos.edu/How-To/Article/2286253/how-to-edit-video-with-the-j-cut-and-l-cut/).
- Prerecorded synchronized media with audio needs captions under WCAG 2.2 Success Criterion 1.2.2 unless the media is an explicitly labeled media alternative for text. Source: W3C WAI (https://www.w3.org/WAI/WCAG22/Understanding/captions-prerecorded.html).
- Practical caption placement guidance includes safe-zone placement and no more than two lines per caption. Source: DCMP Captioning Tip Sheet (https://dcmp.org/learn/225-captioning-tip-sheet).
- Netflix timed-text general requirements specify a 5/6-second minimum and 7-second maximum subtitle event duration for Netflix deliveries; do not generalize these as universal requirements for all platforms. Source: Netflix Partner Help (https://partnerhelp.netflixstudios.com/hc/en-us/articles/215758617-Timed-Text-Style-Guide-General-Requirements).
- YouTube Shorts facts verified on 2026-07-10: square or vertical videos up to 3 minutes are categorized as Shorts for standard channels when uploaded on or after 2024-10-15; YouTube also states Shorts views count starts/replays from 2025-03-31. Sources: YouTube Help (https://support.google.com/youtube/answer/15424877?hl=en, https://support.google.com/youtube/answer/10059070?hl=en).
- TikTok ads facts verified on 2026-07-10: TikTok's ad policy states ad video duration must be 5-60 seconds and use standard video sizes including vertical 9:16, square 1:1, or horizontal 16:9; TikTok's June 2026 in-feed auction specs list Non-Spark vertical recommended 9:16 at at least 540x960, up to 10 minutes, 500 MB max, and safe-zone files. Treat the policy/spec distinction carefully for the placement you are delivering. Sources: TikTok Ads Help (https://ads.tiktok.com/help/article/tiktok-ads-policy-ad-format-and-functionality, https://ads.tiktok.com/help/article/tiktok-auction-in-feed-ads?redirected=2).
- Adobe documents Premiere Team Projects and Productions as collaboration/media-management choices; Productions break long projects into smaller projects and rely on shared media access. Source verified 2026-07-10: Adobe Help (https://helpx.adobe.com/premiere/desktop/collaborate-with-others/collaborate-using-team-projects/when-to-use-team-projects-and-when-to-use-productions.html).
What ships with it
1 file 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.
- 13d ago First seen · 546 lines · 105 tokens per session scan A c1cc77a249f5
editing-montage is a skill published in the GitHub repository calesthio/generative-media-skills (170 stars, last pushed 2mo ago), licensed MIT. It adds 105 tokens to every session and 6,688 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
cliptalk-cover-director
Produces evidence-backed cover candidates and reviewable cover variants for a ClipTalk video. Use when the user asks for a cover, poster frame, thumbnail, or multiple cover directions; do not use for timeline editing or social-video reframing.
cliptalk-smart-reframe
Creates a subject-aware, time-varying crop track and a review-only social-format preview from an accepted ClipTalk cut. Use for automatic vertical, square, or portrait reframing; do not use for a fixed manual crop or before content editing is accepted.
cliptalk-content-extractor
Locates and assembles source passages matching a semantic request. Use for extracting explanations, topics, quotes, demonstrations, or other specifically described content.
cliptalk-interview-editor
Produces a coherent interview edit by combining speaker discovery, topic selection, dialogue context, cleanup, subtitles, and preview. Use for interviews, podcasts, testimonials, or question-and-answer recordings.
cliptalk-shortform-hook-director
Finds and assembles a reviewable short-form cut with a strong opening hook. Use for Shorts, Reels, social clips, talking-head cutdowns, or requests for a punchier opening.
cliptalk-social-reframe-exporter
Creates a review-only 9:16, 4:5, 1:1, or 16:9 version from an existing accepted ClipTalk cut, then checks the rendered preview. Use only when a cut already exists and the user asks to adapt it for Shorts, Reels, Douyin, Xiaohongshu, WeChat Channels, or square feeds; do not use when the user still needs content found…