workspace_record_reading_checkpoint

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

With no annotations, the description must carry the full burden of behavioral disclosure, but it only says 'Create or update.' It does not describe what a 'checkpoint' is, whether the operation is idempotent, what effects occur on the target, whether existing values are overwritten, or what happens on invalid inputs. This is minimal for a mutating 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 a single sentence with no wasted words and is front-loaded with the core action. It is appropriately concise, though it achieves that at the expense of needed detail.

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 6 parameters, required fields, no output schema, and no annotation support, this description is severely incomplete. It omits expected fields semantics, return behavior, and any differentiation from a large set of workspace reading siblings, leaving agents unable to confidently invoke it correctly.

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%, and the description provides no additional meaning for the six parameters. It does not explain status values, target_kind options, how target_id maps to a resource, what evidence should contain, or how session_id relates to a reading session. The description entirely fails to compensate for the schema being undocumented.

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 uses a specific verb-resource pair: 'Create or update a reading checkpoint' in the active workspace. It clearly identifies the operation and resource, though it does not differentiate it from sibling reading tools such as workspace_add_reading_note or workspace_create_reading_session.

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?

No guidance is provided on when to use this tool versus alternatives, nor any conditions for create versus update. The phrase 'active workspace' hints at a prerequisite, but it is not explained, and no exclusions or routing cues are given.

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