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

Annotations only declare readOnlyHint=false, destructiveHint=false and openWorldHint=false; the description adds that this is a lightweight state refresh rather than a required step, and that replies to seek/store/react carry inbox_count. It could go further on whether prior envelope data is replaced or merged, which matters for a write 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?

Two compact sentences with the core action front-loaded and the usage condition following immediately. Minor waste in the parenthetical '(registered pairs)' and the unexplained 'Cards' reference.

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 still tells the agent what the reply carries (inbox_count alongside seek/store/react responses) and when the call is unnecessary. For a single-required-parameter state tool with safety already covered by annotations, nothing essential is missing.

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 reported at 100%, so the schema already carries the parameter burden and 3 is the baseline. The description explains what the envelope is used for downstream but says nothing about the nested tags, memory_slice or recent_artifacts fields, so it adds only marginal 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?

States a concrete verb and resource ('Records what your pair is working on right now') and identifies the payload as the context envelope that later seeks and Cards are read against. That distinguishes it from siblings like pairgora_seek and pairgora_store, though the Pairgora-specific jargon ('Cards', 'context envelope') assumes prior knowledge.

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?

Gives an explicit trigger ('useful when the work has changed since the last Pairgora call') and an explicit exclusion ('not needed at the start of a session'), so the agent knows both when to call it and when to skip it. This is the strongest part of the definition.

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