transaction_release

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

The annotations already declare destructiveHint=true and readOnlyHint=false, so the mutation profile is known. The description adds meaningful context beyond that: the operation frees capacity and explicitly cannot act on pending or recovery-protected records. It stops short of stating idempotency, what error results from releasing a non-terminal record, or whether the receipt survives.

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 sentence, front-loaded with the action and its benefit, followed by the key negative constraint; nothing is padding. Slight cost is that the compression into semicolon clauses makes the first half harder to parse than plain phrasing would.

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?

For a destructive, capacity-freeing operation with no output schema and an undocumented sole parameter, the description is thin: it doesn't cover how to acquire a valid request_id, what a successful release returns, or whether repeated calls are safe. The only genuinely load-bearing disclosure is the prohibition on pending/recovery records.

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?

There is one parameter with 0% schema description coverage, so the description must carry the meaning of request_id, and it does not — the word 'receipt' only loosely hints at what the ID identifies or where an agent obtains one. No format, source, or lookup guidance is provided.

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?

It states a verb (release) and a resource (terminal durable receipt) plus an effect (free capacity), so the action is discernible. However, 'durable receipt' is internal jargon that doesn't map to the request_id parameter or to siblings like transaction_status, recovery_restore, or checkpoint_release, so an agent cannot easily tell whether this is a transaction, recovery, or capacity-management tool.

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 clause 'pending/recovery records cannot be removed' gives an implicit precondition — only terminal records are releasable — which is real routing information. But it never says when to call this versus transaction_status to check state or recovery_restore for the non-terminal case, so usage must be inferred.

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