init_chain

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

With no annotations provided, the description carries the full burden of behavioral disclosure. 'Initialize' suggests a creation/write operation, but the description doesn't specify whether this is idempotent, what permissions are required, what side effects occur, or what happens on success/failure. The alias information is useful but doesn't address core behavioral traits like mutability, error conditions, or system impact.

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

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

The description is extremely concise at just 9 words, which is appropriate for a simple tool. It's front-loaded with the core purpose ('Initialize continuity chain') and uses parentheses efficiently for secondary information. However, the cryptic '(Claim 3a)' reference doesn't earn its place and creates confusion rather than adding value.

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

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

Given a 1-parameter tool with no annotations, no output schema, and 0% schema description coverage, the description is inadequate. It doesn't explain what a 'continuity chain' is, what initialization does, what the parameter means, what the tool returns, or how it differs from related tools. The cryptic '(Claim 3a)' reference doesn't compensate for these fundamental gaps in understanding what the tool actually does.

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

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

The input schema has 1 parameter with 0% description coverage, so the description must compensate. However, the description provides no information about the 'specification_hash' parameter - what it represents, where to get it, what format it should be in, or why it's needed. The '(Claim 3a)' reference might relate to the parameter but is too cryptic to be helpful. The description fails to add meaningful semantics beyond the bare schema.

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

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

The description states the tool 'Initialize continuity chain' which provides a basic verb+resource combination, but it's vague about what 'continuity chain' means or what initialization entails. The parenthetical note about being an alias for 'aga_init_chain' adds some context but doesn't clarify the core purpose. It doesn't effectively distinguish this tool from its sibling 'aga_get_chain' or other chain-related tools.

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

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

The description provides no guidance on when to use this tool versus alternatives. There's no mention of prerequisites, when this initialization should occur, or what happens if a chain already exists. The '(Claim 3a)' reference is cryptic and doesn't offer practical usage guidance. With multiple chain-related siblings (aga_get_chain, aga_verify_artifact, aga_verify_bundle), the absence of differentiation is problematic.

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