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docs(skill): input-limit 400s and a Seedance 2.5 edit/extend recipe - #10

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docs/errors-400-guidance
Oct 14, 2026
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fengshao1227 merged 2 commits into
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docs/errors-400-guidance

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Two documentation changes that follow gateway behaviour shipped on 2026-10-14.

  • references/errors.md: a 400 now often lists the values the model takes (available: 16:9, 9:16); the page says to pick one of them and never resend unchanged, and adds the 400 that names an input file outside the model's limits.
  • references/run.md: reference media is checked before a video task is created; a file outside the limits, or an image over 50 MB, is a 400 naming the field, the index and the limit.
  • New recipe references/recipes/seedance-video-edit-and-drafts.md (mirrored in the installable copy, indexed in SKILL.md): editing and extending a video with Seedance 2.5 through task_type, prompt conventions, output_format, and the input limits. Draft mode is not offered yet and the page says so. The gateway's search already points edit/extend queries at this URL.

Verification: BEATAPI_OPENAPI_SOURCE=/nonexistent/beatapi.yaml npm run verify — 23/23 tests pass; every page is at most 4500 bytes; mirror pages are byte-identical.

🤖 Generated with Claude Code

fengshao1227 and others added 2 commits October 14, 2026 18:14
…ut-file 400

The gateway now names the allowed values in a 400 and checks reference media before a task is created, so the Skill's error and Run pages describe both.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
task_type, the prompt conventions, output_format and the input limits checked before a task is created; draft mode is not offered yet.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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fengshao1227 merged commit 7ebd540 into main Oct 14, 2026
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fengshao1227 deleted the docs/errors-400-guidance branch October 14, 2026 11:08
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