castov_secret

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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered and the description correctly does not contradict it. The description adds a useful trait, that output is CSPRNG-generated, but omits that results are non-deterministic (annotations flag idempotentHint=false) and never explains how the four advertised formats are selected.

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?

One dense, front-loaded sentence with no padding; the verb leads and the formats follow. It is slightly weakened by trailing format names that the schema gives no way to select.

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?

With one optional parameter and no output schema, the definition is nearly complete, but it advertises Hex/Base64URL/API Key/UUIDv7 formats while the schema exposes no format selector, leaving the agent unsure how to obtain each format or what the default is. That ambiguity is the main completeness gap.

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?

Schema description coverage is 100%, with the single 'bytes' parameter fully documented in the schema (range 8-512, default 32). The description adds no meaning beyond that. Baseline 3 is appropriate when the schema does the heavy lifting.

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?

States a specific verb and resource ('Generate cryptographically secure random secrets (CSPRNG)') and enumerates the concrete output formats. It clearly distinguishes itself from siblings like castov_hash, castov_jwt_decode, and castov_scan_secrets, which all touch cryptographic material but do different things.

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 intended context ('for .env files and JWT signing') hints at when to reach for this tool, but there is no explicit when-to-use vs. when-not framing and no named alternative. Usage is largely implied by the purpose statement rather than stated as guidance.

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