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timeline_deepen_story

Read-onlyIdempotent

Generate research directions for a story thread, including source-search queries, related motifs, comparison questions, expansion prompts, and a verification checklist.

Instructions

Generate research directions for a report, motif, or thread: source-search queries, related motifs, comparison questions, story-expansion prompts, and a verification checklist. Never invents sources.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
motifNo
report_idNo
thread_idNo
Behavior4/5

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

Annotations already declare readOnlyHint=true and destructiveHint=false. The description adds a critical behavioral constraint ('Never invents sources'), which is valuable for agent safety. Does not describe output format or side effects beyond generation.

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?

Two sentences, front-loaded with key outputs, followed by a critical constraint. Every word adds value. No fluff.

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

Completeness2/5

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

Despite clear purpose, the description lacks details on output format, which is important since there is no output schema. No examples or guidance on how the information is structured. All parameters are optional, but the description does not clarify the default behavior when none are provided.

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

Parameters2/5

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

Schema description coverage is 0% for 3 optional parameters. Description maps parameters to concepts (motif, report_id, thread_id) but provides no usage guidance, format constraints, or how to choose which parameter to use.

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

Purpose4/5

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

Description clearly states the tool generates research directions for a report, motif, or thread, listing specific output types. However, it does not differentiate itself from sibling tools like timeline_events or timeline_compare_sources, which handle related concepts.

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

Usage Guidelines2/5

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

No guidance on when to use this tool versus alternatives. The description does not mention prerequisites, when not to use, or context where other tools would be more appropriate.

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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