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forget

Remove a fact from the knowledge base, triggering cascading retraction of derived knowledge via the Truth Maintenance System.

Instructions

Retract a fact from the knowledge base. Inverse of 'tell'. Side effects: DESTRUCTIVE — triggers cascading retraction of any knowledge derived from this fact via the Truth Maintenance System (irreversible). Auth: requires X-Tenant-ID header; FACT_WRITE permission when auth is enabled. Rate-limited per principal. Errors: VALIDATION_ERROR on bad args (no error if the fact was not present).

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
predicateYesThe relationship to forget
argsYesThe specific entities to forget about
scopeNoOptional scope
Behavior5/5

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

Despite no annotations, the description fully discloses destructive irreversible behavior (cascading retraction), auth requirements, rate limiting, and error handling, setting high transparency.

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

Conciseness4/5

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

The description is concise and front-loaded with the core action, but could be structured with bullet points for easier scanning.

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

Completeness5/5

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

Given no annotations and no output schema, the description covers side effects, auth, errors, and rate limiting completely for a destructive tool.

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 100%, so baseline is 3. The description does not add extra meaning beyond the schema's parameter descriptions.

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 verb 'retract' and the resource 'fact from the knowledge base', and explicitly calls it the inverse of 'tell', distinguishing it from sibling tools.

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?

It provides clear context: used to undo 'tell', with side effects and auth requirements. However, it does not explicitly mention when not to use or compare to other siblings like retract_pattern.

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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