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

Annotations already declare readOnlyHint and non-destructive, so the safety profile is covered. The description usefully adds behavior beyond that: stack frames are resolved when source maps exist, and the output is an aggregation (stack + frames + breadcrumbs + facets + cause chain + prompt). It says nothing about response size, latency, or what happens when data is unavailable.

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?

A single front-loaded sentence that labels the result type first ('One issue condensed for fixing it') and then itemizes the payload. Every clause carries content; nothing is filler.

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 no output schema, the description carries the burden of explaining returns, and it does so by enumerating the sections of the brief. Minor gaps: no mention of failure behavior for an invalid or missing issue, and no differentiation from the plain get_error_issue tool.

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 coverage is 100% and the schema already tells the agent the issue_id comes from list_error_issues. The description adds no parameter detail whatsoever, so the baseline 3 applies.

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 names a specific resource and operation: one issue condensed with a fix prompt, and it enumerates exactly what the brief contains. It doesn't, however, distinguish itself from sibling get_error_issue, so an agent can't tell the two apart from this text alone.

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?

'Condensed for fixing it' implies the use case (you want to act on an issue, not browse), but there is no explicit when-to-use or when-not guidance and no mention of get_error_issue or search_error_issues as alternatives. Usage is inferable but not stated.

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