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Graph-Memory

by stevepridemore
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Hybrid

Graph Prune

graph_prune
Destructive

Remove low-confidence entities and edges that have decayed below specified thresholds. Preview before executing destructive cleanup, with options to prune orphaned nodes by age.

Instructions

Remove entities and edges that have decayed below threshold. DESTRUCTIVE — always preview first. Requires user confirmation before execute mode.

Input Schema

NameRequiredDescriptionDefault
modeNopreview (default) or executepreview
max_age_daysNoMax age for orphan pruning (default: 30)
edge_thresholdNoPrune edges below this weight (default: 0.05)
node_thresholdNoPrune nodes below this confidence (default: 0.1)
include_orphansNoAlso prune orphaned nodes (default: true)

Schema Changelog

Changes observed during successful MCP inspections.

  1. Addedv0.2.2
  2. Removedv0.1.4
  3. Changed5 schema fields changedv1.0.1
    • addedInput schema / properties / edge_threshold / default
      Added value: +0.05
    • addedInput schema / properties / include_orphans / default
      Added value: +true
    • addedInput schema / properties / max_age_days / default
      Added value: +30
    • addedInput schema / properties / mode / default
      Added value: +"preview"
    • addedInput schema / properties / node_threshold / default
      Added value: +0.1
  4. First observedv1.0.0

TDQS

A4.4/5.0
Behavior5/5

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

Beyond the destructiveHint annotation, the description adds critical behavioral context: 'DESTRUCTIVE — always preview first' and 'Requires user confirmation before execute mode'. This fully discloses the tool's risks and safe usage.

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 concise sentences with no wasted words. Purpose is stated first, followed by crucial safety warnings. Highly efficient.

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 destructiveHint annotation and complete parameter schema, the description sufficiently covers context. No output schema exists but is not critical for this operation. Could marginally improve by explicitly differentiating from graph_delete.

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 description coverage is 100% (all 5 parameters have descriptions with defaults and types). The description adds no additional parameter information beyond the schema, meeting the baseline expectation.

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 'Remove entities and edges that have decayed below threshold', specifying both the verb (remove) and the resource (decayed entities/edges). This distinguishes it from siblings like graph_delete (generic deletion) and graph_decay (likely calculates decay).

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 provides clear usage guidance: 'always preview first' and 'requires user confirmation before execute mode'. It implies caution but does not explicitly state when not to use or list 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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