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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is fully covered by structured data. The description contributes one genuinely useful behavioral fact beyond that: results are permission-scoped ('you are allowed to see'), which tells the agent that missing results may reflect access rather than absence. It says nothing about ranking, pagination, result shape, or what the ellipsis-truncated remainder of the scope is.

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 short and front-loaded with the core idea, which is good, but it ends mid-thought with 'whatever else...', meaning the sentence does not actually earn its place by delivering a complete scope statement. It is under-specified rather than concise: the same word budget could have enumerated the sources or stated the query semantics.

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 tool with three parameters, a 13-value enum, no schema descriptions and no output schema, the description is far too thin to let an agent call it confidently. It never clarifies query syntax, default or maximum limit, whether 'sources' is optional or how multiple sources combine, nor what the unified result format looks like. The permission-scoping note is the only substantive detail supplied.

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 0% across all three parameters, so the description carries the full burden and largely fails it. It never mentions 'q', 'limit', or 'sources', and gives no explanation for the 13 opaque enum values (trana, learn, threads, cells, capabilities, docs, machines, rooms, repos, memory, graph, published, files), which an agent cannot confidently select from without guidance. At most, 'search over everything' hints that 'sources' is the scoping mechanism, but that is inference from the parameter name rather than stated meaning.

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 verb and resource ('One search over everything on ce-net'), which does convey a unified/federated search rather than a scoped one, so an agent can roughly distinguish it from narrowly-scoped siblings like repo_search or tools_search. However the clause trails off into 'whatever else...', so the actual result scope is never defined. The stated purpose is directionally right but vague in what 'everything' covers.

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?

There is no explicit when-to-use or when-not-to-use guidance, and no reference to any alternative despite ~10 sibling search tools (apps_search, repo_search, source_search, tools_search, directory_search, twins_search, market_search, listing_search, factories_search, cell_search_ask). The 'one search over everything' phrasing weakly implies a broad catch-all, but the agent is left to infer that this is the fallback when a targeted search is unavailable.

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