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roadmap_block

Record that a node is blocked by another node in the roadmap, indicating a real dependency rather than decomposition.

Instructions

Record a DEPENDENCY edge: node blocked_id is blocked by blocked_by_id. Use this for real dependencies instead of overloading parent_id (parent_id = decomposition). Surfaced in roadmap_view as a node's blocked_by.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
blocked_idYes
blocked_by_idYes

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. It only states the action but omits details on idempotency, side effects, error conditions, or authorization requirements. For a write operation, more transparency is needed.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two sentences with no redundant information. The critical action and context are front-loaded, and every word serves a purpose. Ideal conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's low complexity (2 parameters, no annotations, output schema exists), the description covers the essential purpose and usage distinction. It omits nothing critical for selection, though behavioral details are sparse.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, so the description must compensate. It adds context that blocked_id is the node that gets blocked and blocked_by_id is the blocker. However, it does not specify expected formats or ranges, leaving some ambiguity.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool records a dependency edge, specifying the two node IDs involved. It distinguishes this tool from overloading parent_id for decomposition, which is a common alternative use case. The purpose is specific and unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description explicitly advises using this tool for real dependencies instead of misusing parent_id for dependencies. It also notes the effect is surfaced in roadmap_view as blocked_by. However, it does not explicitly state when not to use it or mention sibling tools as alternatives.

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

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