sequential-thinking

sequential-thinking is a skill for Claude Code, Codex from spideynolove/claude-dotfiles. It costs 32 tokens per session (2,002 once invoked), scanned A, original, MIT.

A structured-reasoning tool for breaking difficult work into connected steps. It can keep separate lines of investigation, combine them, and save useful conclusions.

In plain words
What is it for?
Use it to analyse unfamiliar code, identify patterns, split complex problems into parts, build system understanding, and record decisions.
Why use it?
It helps prevent complex codebase analysis or planning from becoming an unstructured chain of guesses. The stored conclusions can be reused later.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/spideynolove/claude-dotfiles/sequential-thinking
Any agent
npx skills add spideynolove/claude-dotfiles --skill sequential-thinking
Clone the repo
git clone --depth 1 https://github.com/spideynolove/claude-dotfiles

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for sequential-thinking

README.md
[![agentmods](https://agentmods.dev/badge/skills/spideynolove/claude-dotfiles/sequential-thinking.svg)](https://agentmods.dev/skills/spideynolove/claude-dotfiles/sequential-thinking)
Your own site
<a href="https://agentmods.dev/skills/spideynolove/claude-dotfiles/sequential-thinking"><img src="https://agentmods.dev/badge/skills/spideynolove/claude-dotfiles/sequential-thinking.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,002 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00032 $0.02002
Opus 5 $0.00016 $0.01001
Sonnet 5 $0.00006 $0.00400
Haiku 4.5 $0.00003 $0.00200

Measured 4d ago against content hash 5b41f04c2458, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sequential-thinking scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-global/skills/sequential-thinking/SKILL.md · 287 lines

How it starts

The opening of the file, as written. The whole thing — 287 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sequential Thinking

Progressive disclosure framework for structured cognition and codebase analysis.

Core Principles

  1. Question-First: Define what you need to understand before using tools
  2. Reasoning Chains: Each thought explicitly depends on previous thoughts
  3. Cognitive Branches: Separate thinking tracks for different aspects
  4. Synthesis Before Action: Complete understanding before extraction

When to Use

  • Analyzing new codebases
  • Extracting reusable patterns
  • Complex problem decomposition
  • Building mental models
  • Understanding domain-specific architectures

All 12 tools via mcporter

Tool Required params Purpose
start_session problem, success_criteria Begin a new thinking session
add_thought content Add a thought to the current session
create_branch name, from_thought, purpose Fork reasoning into a parallel track
merge_branch branch_id Merge a branch back into main reasoning
store_memory content Store a reusable insight
query_memories (none) Search memories by tags or content
record_decision decision_title, context, options_considered, chosen_option, rationale, consequences Capture architecture decisions
explore_packages task_description Find relevant installed packages
export_session filename Export session or memories to file
list_sessions (none) List all saved sessions
load_session session_id Resume a specific session
analyze_session (none) Get stats summary of current session

Process

Phase 1: Problem Decomposition

# Check if session already loaded (server auto-loads last session on startup)
mcporter call sequential-thinking.analyze_session

# If no active session, start one
mcporter call sequential-thinking.start_session(
  problem: "What fundamental questions must I answer?",
  success_criteria: "Clear understanding of core questions",
  session_type: "general"
)

Read the full file on GitHub · 287 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 287 lines · 32 tokens per session scan A 5b41f04c2458

Subscribe to this mod's changes

sequential-thinking is a skill published in the GitHub repository spideynolove/claude-dotfiles (2 stars, last pushed 3mo ago), licensed MIT. It adds 32 tokens to every session and 2,002 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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