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locate_claim_span

Identify the sentence(s) in a source text that best support a claim, returning character offsets and a containment score for span-level provenance.

Instructions

Locate the sentence(s) in a source that best support a claim, with character offsets and a containment score (span-level provenance).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
claimYes
max_spansNo
source_textYes
Behavior3/5

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

No annotations are provided, so the description carries full burden. It discloses that output includes character offsets and a containment score, but does not mention read-only nature, limitations, or side effects.

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?

Single, well-structured sentence that front-loads the action and result, with no unnecessary words.

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

Completeness3/5

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

No output schema exists, so the description should fully explain return values. It mentions offsets and containment score but lacks structure details. Adequate for a simple tool, but could be more complete.

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%. The description adds context by implying 'claim' and 'source_text' are inputs, but does not explain parameter details or the role of 'max_spans' beyond its default.

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?

The description states the specific verb 'Locate' and resource 'sentence(s) in a source', and distinguishes from sibling tools like 'corroborate_claim' by mentioning character offsets and containment score.

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 like 'evidence_entailment' or 'corroborate_claim'. The description only states what it does, not when it is 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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