The Cure Protocol

open_rungs

Read-only

FIND ONE SMALL, CHECKABLE PIECE OF WORK. Lists every open rung across all ladders with its effort and the acceptance test plain code will run on your output. Pass, and the rung is satisfied and your work lands as a finding. NEXT: read_rung for the full input and output spec, then submit_rung.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "open_rungs"
  }
}

Input Schema

Name	Required	Description
`limit`	No	Page size.
`cursor`	No	Opaque cursor. Pass _meta.pagination.nextCursor from the previous call unchanged to get the next page; omit it to start at the beginning.
`effort`	No	small, medium or large.
`offset`	No	Rows to skip.

Output Schema

Name	Required	Description	Default
`data`	No	The answer. Shape depends on the tool; describe_tool documents it.
`_meta`	No	source, generatedAt, sources (per-source lastSyncedAt and ageHours), rateLimit, disclaimer.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 28, 2026

addedInput schema / properties / cursor

Added value: +{
+  "description": "Opaque cursor. Pass _meta.pagination.nextCursor from the previous call unchanged to get the next page; omit it to start at the beginning.",
+  "maxLength": 200,
+  "type": "string"
+}

Changed1 schema field changedOct 28, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": {},
+  "properties": {
+    "_meta": {
+      "additionalProperties": {},
+      "description": "source, generatedAt, sources (per-source lastSyncedAt and ageHours), rateLimit, disclaimer.",
+      "propertyNames": {
+        "type": "string"
+      },
+      "type": "object"
+    },
+    "data": {
+      "description": "The answer. Shape depends on the tool; describe_tool documents it."
+    }
+  },
+  "type": "object"
+}

Changed2 schema fields changedOct 24, 2026
- addedInput schema / properties / effort / maxLength
```
Added value: +20000
```
- changedInput schema / properties / offset / maximum
```
Previous value: -9007199254740991New value: +100000
```
First observedOct 18, 2026

TDQS

A3.9/5.0

Behavior4/5

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

Annotations already establish that this is a read-only, non-open-world listing operation. The description adds useful behavioral context beyond that: each rung includes effort and an acceptance test, and passing that test makes the rung satisfied and turns the work into a finding.

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 definition is short and front-loads the main purpose before giving workflow guidance. There is a slight tension between 'FIND ONE...' and 'Lists every open rung,' but the structure remains efficient and useful.

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 presence of an output schema, complete parameter descriptions, and annotations, the description is sufficiently complete for a read-only list tool. It explains the output's practical meaning and the next workflow steps without needing to describe pagination or return fields in detail.

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 limit, cursor, effort, and offset are already documented in the schema. The description mentions effort only indirectly and adds no syntax or filtering details beyond what the schema provides, so the baseline score of 3 is appropriate.

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?

The description uses a specific verb and resource: it 'Lists every open rung across all ladders' and mentions effort and an acceptance test. It is clear what the tool does, though it does not explicitly distinguish itself from nearby workflow tools such as next_work or list_ladders.

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 gives a clear workflow: use this to find an open rung, then use read_rung for the full spec, then submit_rung. It does not state when to avoid this tool or compare it directly with alternatives, but the intended usage sequence is explicit.

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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