coc_init

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

Describes core behavior: creates genesis block, uses SHA-256 linking, tamper-evident, append-only, returns JSON. No annotations provided, so description carries burden. Could mention if chain already exists (overwrite or error?), but still adequate.

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?

Very concise: first sentence states purpose, then brief technical detail, then structured Args/Returns. No wasted words, appropriate length for a simple init tool.

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?

Covers behavior, parameter, and return value. Output schema exists (mentioned in Returns). For a simple tool with one param, it's fairly complete. Lacks error conditions or prerequisites, but acceptable.

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?

Only one parameter 'agent' with default 'anonymous'. Schema has 0% description coverage, but description explains it as 'Name/ID of the agent initializing the chain'. Adds meaning beyond schema type and default.

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?

Description clearly states it initializes a new Chain of Consciousness hash chain by creating a genesis block. Uses specific verb 'Initialize' and resource name. Distinguishes from siblings like coc_add and coc_verify which are for adding or verifying.

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?

Implicitly clear this is the first step before using coc_add, etc. But lacks explicit 'use this when starting a new chain' or 'do not use if chain exists'. Sibling names imply lifecycle, but no direct guidance.

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