inspect

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

With no annotations provided, the description carries the full burden of behavioral disclosure; the phrase 'without changing it' adequately communicates that this is a non-mutating, read-only operation. However, it does not describe return shapes, failure modes, or differences between the 13 actions, which leaves meaningful gaps for a dispatcher-style 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?

The description is front-loaded with purpose and usage guidance, then compactly lists the supported actions. The action list repeats the enum but is useful for quick comprehension in a dispatcher tool, and there is no wasteful prose.

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?

As a 13-action multiplexer with no annotations and no output schema, the description gives a solid high-level orientation but lacks per-action argument requirements and expected results. An agent would likely call obvious actions like list_projects correctly, but less obvious actions like filter_by_role are under-specified.

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%: both 'action' and 'args' have descriptions, and 'args' includes an example. The description itself adds no per-action parameter detail, so it remains at the baseline 3 without compensating for the generic args object.

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 begins with a clear read-only verb and resource ('Read a timeline or project without changing it'), which immediately distinguishes it from mutating sibling tools like edit, mark, and generate. It further lists all 13 concrete actions it supports, leaving no confusion about what the tool is for.

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?

It explicitly says 'Use this first to understand what you are working with,' giving a strong contextual trigger for selecting this tool. It does not explicitly name excluded situations or direct the agent to alternative siblings for modifications, but the read-only phrasing vs. mutation-oriented siblings makes the boundary clear.

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