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sequential_thinking

Break down complex problems into manageable steps using structured sequential reasoning to analyze, decide, or explore ideas systematically.

Instructions

Engage in systematic step-by-step thinking to analyze complex problems, make decisions, or explore ideas. Each thought builds on the previous ones, creating a chain of reasoning.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
thoughtYesYour current thought or analysis step
reasoningNoOptional: Explain why this thought follows from previous ones
categoryNoOptional: Categorize this thought (analysis, synthesis, evaluation, etc.)
revise_stepNoOptional: Revise a previous step by its number
branch_from_stepNoOptional: Create a new reasoning branch from a specific step number
target_stepsNoOptional: Target number of thinking steps for this session
complete_thinkingNoOptional: Mark the thinking session as complete

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed16 schema fields changedv1.0.0
    • removedInput schema / properties / branchFromThought
      Removed value: -{
      -  "description": "Branching point thought number",
      -  "exclusiveMinimum": 0,
      -  "type": "integer"
      -}
    • removedInput schema / properties / branchId
      Removed value: -{
      -  "description": "Branch identifier",
      -  "type": "string"
      -}
    • addedInput schema / properties / branch_from_step
      Added value: +{
      +  "description": "Optional: Create a new reasoning branch from a specific step number",
      +  "type": "number"
      +}
    • addedInput schema / properties / category
      Added value: +{
      +  "description": "Optional: Categorize this thought (analysis, synthesis, evaluation, etc.)",
      +  "type": "string"
      +}
    • addedInput schema / properties / complete_thinking
      Added value: +{
      +  "description": "Optional: Mark the thinking session as complete",
      +  "type": "boolean"
      +}
    • removedInput schema / properties / isRevision
      Removed value: -{
      -  "description": "Whether this revises previous thinking",
      -  "type": "boolean"
      -}
    • removedInput schema / properties / needsMoreThoughts
      Removed value: -{
      -  "description": "If more thoughts are needed",
      -  "type": "boolean"
      -}
    • removedInput schema / properties / nextThoughtNeeded
      Removed value: -{
      -  "description": "Whether another thought step is needed",
      -  "type": "boolean"
      -}
    • addedInput schema / properties / reasoning
      Added value: +{
      +  "description": "Optional: Explain why this thought follows from previous ones",
      +  "type": "string"
      +}
    • addedInput schema / properties / revise_step
      Added value: +{
      +  "description": "Optional: Revise a previous step by its number",
      +  "type": "number"
      +}
    • removedInput schema / properties / revisesThought
      Removed value: -{
      -  "description": "Which thought is being reconsidered",
      -  "exclusiveMinimum": 0,
      -  "type": "integer"
      -}
    • addedInput schema / properties / target_steps
      Added value: +{
      +  "description": "Optional: Target number of thinking steps for this session",
      +  "type": "number"
      +}
    • changedInput schema / properties / thought / description
      Previous value: -"The current thinking step"New value: +"Your current thought or analysis step"
    • removedInput schema / properties / thoughtNumber
      Removed value: -{
      -  "description": "Current thought number",
      -  "exclusiveMinimum": 0,
      -  "type": "integer"
      -}
    • removedInput schema / properties / totalThoughts
      Removed value: -{
      -  "description": "Estimated total thoughts needed",
      -  "exclusiveMinimum": 0,
      -  "type": "integer"
      -}
    • changedInput schema / required
      Previous value: -[
      -  "thought",
      -  "nextThoughtNeeded",
      -  "thoughtNumber",
      -  "totalThoughts"
      -]New value: +[
      +  "thought"
      +]
  2. First observed

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It describes the tool as engaging in 'step-by-step thinking' and 'creating a chain of reasoning,' which implies a cognitive process, but it doesn't disclose key behavioral traits like whether this is a read-only or mutative operation, how it handles errors, or if there are rate limits. For a tool with 7 parameters and no annotations, this is a significant gap in transparency.

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?

The description is appropriately sized and front-loaded, consisting of two concise sentences that directly state the tool's purpose and method. Every sentence earns its place by explaining the core functionality without unnecessary details, making it efficient and well-structured for quick understanding.

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?

Given the complexity of 7 parameters, no annotations, and no output schema, the description is incomplete. It lacks details on behavioral traits, usage context, and expected outcomes, which are crucial for an AI agent to effectively invoke this tool. The description does not adequately compensate for the missing structured data, leaving significant gaps in understanding.

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?

The schema description coverage is 100%, meaning all parameters are documented in the input schema. The description adds no specific meaning beyond the schema, such as explaining how parameters interact or providing examples. Since the schema does the heavy lifting, the baseline score of 3 is appropriate, as the description doesn't compensate but also doesn't detract.

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 clearly states the tool's purpose as 'Engage in systematic step-by-step thinking to analyze complex problems, make decisions, or explore ideas,' which includes a specific verb ('engage') and resource ('thinking'). However, it doesn't explicitly distinguish this from sibling tools like 'reset_thinking' or 'get_thinking_summary,' which appear related to thinking processes, so it misses full sibling differentiation.

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?

The description provides no guidance on when to use this tool versus alternatives. It mentions building thoughts sequentially but doesn't specify contexts, prerequisites, or exclusions, such as when to choose this over 'reset_thinking' or other analysis tools. This lack of explicit usage guidelines limits its helpfulness for an AI agent.

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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