Release social pack

Part of pb-content-studio (step f: social pack). What you get: posts per platform and clip cut-downs from your release recap, every claim traceable to a fact, handed off for publishing after your GO.

Inputs

• recap — release notes, or a pb-ship / pb-release-aos run log
• platforms — for example LinkedIn, X, Instagram, YouTube Shorts
• launch_video (optional) — an mp4 from pb-launch-video; without it the pack is posts only and step 4 is skipped; pb-launch-video renders with hyperframes when installed, else with the remotion skill
• formats (optional) — default 9:16 (1080x1920), 1:1 (1080x1080) and 16:9 (1920x1080)

Steps

1. Preflight — test -d ~/.claude/skills/content-engine; absent → log "content-engine not installed: copywriting fallback" and continue. With launch_video: command -v ffmpeg and command -v ffprobe; either missing → stop with "Missing tool: <name>. Install ffmpeg and rerun." and write nothing except the run log — probes answered
2. Ask — recap path, platforms, slug, launch_video, formats → run log — all answered, recap file exists
3. quick-recap — recap → social/<slug>/facts.md, one numbered fact per line with its source line in the recap; no fact without a source — file written
4. content-engine (if present) or copywriting — facts.md → social/<slug>/posts.md per platform, each claim tagged [F<n>] — every claim has a tag that exists in facts.md — stops for approval
5. ffmpeg — launch_video → social/<slug>/clips/<name>_<WxH>.mp4 per format and per requested cut, for example ffmpeg -ss <start> -t <seconds> -i <video> -vf "scale=<W>:<H>:force_original_aspect_ratio=increase,crop=<W>:<H>" -c:a copy <out>, then ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=p=0 <out> — ffprobe equals the asked WxH for every clip; on a mismatch stop with "clip <file> has WxH, expected ...", do not publish
6. [GO] publish — platforms, post texts and the full clip list shown. The run stops here until the human types GO. No publish MCP exists, so the GO releases the hand-off: posts, clips and captions in social/<slug>/publish.md; upload is manual unless the human named a tool in step 2 — hand-off file written

Run log: production_artifacts/pb-social-pack-<date>.md in the start directory, never committed

Optional silence-cut step: auto-editor

• auto-editor (https://github.com/WyattBlue/auto-editor) cuts silent sections from a clip automatically — useful before scale/crop when the launch video is a talking-head recording.
• Preflight probe: auto-editor --version. If the binary is missing or errors, log "auto-editor not installed: silence-cut skipped" and continue — the step never fails the run.
• Usage when present: auto-editor <launch_video> -o <out.mp4> before the ffmpeg cut-downs in step 5; the cut-downs then take the silence-cut file as input.
• Installing auto-editor (pip install auto-editor) is a manual opt-in step for the user — never pip-install it as part of this playbook.

Rules

• Anything other than the literal GO (case-insensitive) is not a GO; a GO covers only that one step, one time.
• A failed check stops the run: write the failure into the run log and report. No silent retries.
• GO is by contract in every harness. The go-gate hook is only a backstop on Claude Code, OpenCode and agy (Codex: unverified; Cursor, Kimi: none). A missing hook is never permission to proceed.
• Write one run-log line per step as it completes (N. done|skipped|failed — artifact — check result) and WAITING FOR GO: <step> at each gate.