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nucleus

by io.github.eidetic-works

nucleus_plan_list

List available plan files in .brain/plans with task counts. WHEN TO USE: you want to discover which plan files exist and how many tasks each contains before importing or executing one.

Returns: JSON string: a list of dicts each with {"name", "path", "size_bytes", "task_count", "format"}. Missing directory returns [].

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

TDQS

A4.2/5.0
Behavior3/5

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

No annotations provided, so the description carries full burden. It mentions the return format and edge case of missing directory returning []. However, it does not disclose any potential side effects or auth requirements, though the tool is read-only.

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?

Extremely concise: one sentence for main purpose, one line for usage guideline, then return format. No unnecessary words, front-loaded with key information.

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 no parameters and a described output, the tool is well-documented. It covers purpose, usage timing, and return format. Minor omission: no mention of sorting or filtering, but not essential for simple listing.

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

Parameters4/5

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

The input schema has no parameters (0 params, 100% coverage), so description does not need to add parameter details. Baseline for 0 params is 4.

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 'List available plan files in .brain/plans with task counts' and distinguishes from sibling tools like nucleus_plan_import and nucleus_plan_execute by specifying it is for discovery before those actions.

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?

Includes explicit 'WHEN TO USE' section that tells the agent to use this tool for discovering plan files before importing or executing. While it doesn't explicitly list when not to use, the context is clear and sufficient.

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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TDQS

B3.3/5.0
Disambiguation4/5

Tools are grouped by domain with detailed descriptions, but some overlap exists (e.g., multiple relay-related tools like nucleus_relay, nucleus_relay_subscribe, nucleus_next_message). Overall, most tools have distinct purposes, and descriptions help disambiguate.

Naming Consistency5/5

All tool names follow the 'nucleus_' prefix with a consistent noun-like second part (e.g., nucleus_agents, nucleus_audit, nucleus_delegate). Even compound names like nucleus_lane_feedback maintain the pattern, with no mixing of conventions.

Tool Count3/5

With 28 tools, the count is on the higher end but still justifiable given the broad scope of an agent operating system. The tools cover many necessary functions, though the set could be slightly trimmed for focus.

Completeness4/5

The tool surface covers most aspects of an agent OS: agents, audit, delegation, memory, features, federation, governance, infra, lanes, messaging, orchestration, plans, relay, routing, sessions, slots, sync, tasks, telemetry. Minor gaps like a dedicated config tool are absent but not critical.

Resources