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update_project_bible

Update fields in a project's Project Bible to keep design notes, requirements, and asset details aligned for coding agents.

Instructions

Update fields in the Project Bible.

Input Schema

NameRequiredDescriptionDefault
projectNodefault
updatesYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

C2.4/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full behavioral burden, and it discloses almost nothing. 'Update fields' weakly implies a partial/merge update, but it does not say whether the nested 'updates' object replaces whole sub-objects, whether unmentioned fields are preserved, whether this is destructive, or what permissions are required — all critical for a mutation tool.

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

Conciseness3/5

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

A single front-loaded sentence with zero padding, so it is structurally clean. The terseness, however, is under-specification rather than disciplined conciseness given the tool's complexity.

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

Completeness1/5

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

A mutation tool with nested-object input, no annotations, no output schema, and no schema descriptions is left almost entirely unexplained. An agent cannot determine valid payload shape or side effects from this definition and would likely need trial and error or a preceding get_project_bible call to proceed.

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

Parameters1/5

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

Schema description coverage is 0% and the description compensates for none of it. The 'updates' parameter is a free-form object with no declared properties, so the agent has no way to know which Project Bible fields are updatable or their expected shapes, and the 'project' parameter (which defaults to 'default') is never mentioned.

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

Purpose4/5

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

States a specific verb ('Update') and resource ('Project Bible') with the notion of field-level modification. The name pairing with the sibling get_project_bible makes the read/write split inferable, though the description itself never names the alternative.

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

Usage Guidelines2/5

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

No indication of when to use this versus get_project_bible, what prerequisites exist, or whether it should be preceded by a read. The only signal is the verb 'Update', leaving the agent to infer that this is the write counterpart.

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