Journey Timeline

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

With no annotations, the description carries the full burden; 'Reconstruct' implies a read-only aggregation, and the enumeration of enrichment data and output formats is genuinely informative. However, it doesn't state prerequisites (git repo state, whether notes must already exist), whether it touches the remote, or what happens when no notes/trailers exist — gaps that matter for a composite read tool.

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 dense sentence that front-loads the core action and then the data sources and output formats. It is efficient for the amount of information conveyed, though packing four enrichment sources into a clause makes it slightly hard to scan.

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 two-optional-parameter read tool with no output schema and no annotations, the description covers purpose and formatting options adequately. It leaves unclear what the JSON/table payload contains structurally and what preconditions or failure modes exist, which a richer description should have 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 coverage is 100%, so both parameters are already documented, and the description only restates the format choices and base-branch comparison. It adds minor semantic value by clarifying that 'pr-body' yields a pull-request draft, but offers no extra detail on branch resolution or format behavior beyond the schema.

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 ('Reconstruct') and a well-defined resource ('branch Journey Timeline against a base branch') and enumerates the enrichment sources (Git Notes, subtask IDs, tiers, trailers) plus output formats. It is clearly distinguishable from generic siblings like lognexus_audit or lognexus_note_show, though it never names those alternatives directly.

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?

Usage is only implied: the 'against a base branch' framing suggests PR/release review scenarios, but there is no explicit when-to-use, when-not-to-use, or pointer to a sibling such as lognexus_audit or lognexus_note_show. An agent must infer the routing decision.

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