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privy-io
by privy-io

update_policy_rule

Update an existing rule in a policy to modify its conditions, method, or allow/deny action for blockchain operations.

Instructions

Updates an existing rule within a policy.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYesName for the rule (1-50 characters)
actionYes
methodYes
rule_idYesID of the rule to update
policy_idYesID of the policy (24 characters)
conditionsYesConditions that define when the rule applies
Behavior2/5

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

No annotations provided. Description only says 'Updates', but fails to disclose whether it requires full replacement or partial update, or effects on existing state. For a mutation tool, this is insufficient.

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?

Single sentence is concise but lacks any structure or additional context. Only one sentence, which is efficient but could include more information.

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

Completeness2/5

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

With 6 required parameters and no output schema or annotations, the description is too brief. It does not clarify update semantics (partial vs full replacement) or what happens to existing data.

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 has 67% description coverage, meaning some parameters are already documented. The description adds no additional semantic value beyond the schema.

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?

Clearly states action (Updates) and resource (existing rule within a policy), distinguishing it from sibling tools like add_rule_to_policy and delete_policy_rule.

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 guidance on when to use this tool versus add_rule_to_policy or delete_policy_rule, nor any prerequisites or context for invocation.

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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