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fablecut_set_project

Replace the entire project JSON to modify the video timeline. Edits appear live in the editor. Conflict-safe: the call errors if the project changed externally; re-read and retry.

Instructions

Replace the FableCut project JSON. Pass the COMPLETE document (read with fablecut_get_project, modify, send back whole). Revision is auto-bumped; the open editor UI hot-reloads instantly so the user sees the edit live. CONFLICT-SAFE: if the project changed on disk since your last fablecut_get_project (e.g. the user tweaked something in the UI), the call errors instead of overwriting — re-read, re-apply your edit on top of the latest document, and retry.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
forceNoOverwrite even if the project changed since it was last read (discards those external/user changes). Only when the user explicitly asks.
projectYesThe complete project document (see fablecut_docs for schema)
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Discloses auto-bumped revision, instant hot-reload, conflict error and retry pattern, and force overwrite behavior. No annotations to contradict.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Three concise, front-loaded sentences covering all crucial aspects without waste.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Explains behavior well but lacks description of return value. Given set operation, minor gap.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, description adds value by clarifying the 'project' must be complete and the read-modify-write cycle, and explains 'force' usage.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Clearly states it replaces the project JSON with the complete document, distinguishing from patch tools. Verb 'replace' with resource 'project' is specific.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly instructs to read, modify, send whole. Provides conflict-safety retry guidance. Could mention that partial updates should use fablecut_patch_project.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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