sequential-thinking

sequential-thinking is a skill for Claude Code, Codex from 2428424081cn/Skill-mcp. It costs 43 tokens per session (376 once invoked), scanned A, original, MIT.

A structured reasoning guide for difficult or uncertain problems. It asks the agent to state assumptions, work through smaller steps, check for contradictions, and revise earlier conclusions when needed.

In plain words
What is it for?
Use it for problems with many branches, unclear requirements, strict logic, or conclusions that need repeated checking and revision.
Why use it?
It reduces rushed answers by making assumptions and possible errors visible during complex problem solving.

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/2428424081cn/skill-mcp/sequential-thinking
Any agent
npx skills add 2428424081cn/Skill-mcp --skill sequential-thinking
Clone the repo
git clone --depth 1 https://github.com/2428424081cn/Skill-mcp

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/2428424081cn/skill-mcp/sequential-thinking.svg)](https://agentmods.dev/skills/2428424081cn/skill-mcp/sequential-thinking)
Your own site
<a href="https://agentmods.dev/skills/2428424081cn/skill-mcp/sequential-thinking"><img src="https://agentmods.dev/badge/skills/2428424081cn/skill-mcp/sequential-thinking.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 376 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 5.1 $0.00043 $0.00376
Opus 5 $0.00022 $0.00188
Sonnet 5 $0.00009 $0.00075
Haiku 4.5 $0.00004 $0.00038

Measured 5d ago against content hash 6cb16405563e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, 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 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/sequential_tracker.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/reasoning/sequential-thinking/SKILL.md · 25 lines

What it actually says

动态思维链与回溯推导指南 (Sequential Thinking)

当你面对复杂、模糊、分支众多或逻辑极度严密的挑战时,禁止立刻给出最终代码或草率结论,必须调用本技能进行结构化分步推演。

思考执行法则

  1. 初始假设(Hypothesis Formulation)
    • 步骤 1:明确核心问题、已知边界条件与待验证的前提假设。
  2. 渐进推导(Step-by-Step Deduction)
    • 步骤 2+:每一步只推导一个局部子问题,并评估中间推导的可靠度。
  3. 主动自省与回溯(Revision & Backtracking)
    • 如果发现当前推导与前序条件矛盾,立即设置 isRevision: true,回溯到矛盾发生的节点,开辟新分支 branchId: "branch-b"
  4. 收敛与最终综合(Convergence)
    • 当所有逻辑漏洞闭环且无未解决反例后,将 needsMoreThoughts 设为 false,输出最终严密方案。

辅助脚本调用

node scripts/sequential_tracker.mjs --step 1 --total 4 --thought "假设系统瓶颈在连接池而非 CPU..."
Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 25 lines · 43 tokens per session scan A 6cb16405563e

Subscribe to this mod's changes

sequential-thinking is a skill published in the GitHub repository 2428424081cn/Skill-mcp (1 stars, last pushed 11d ago), licensed MIT. It adds 43 tokens to every session and 376 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.

Related

Other skills, from other repositories

systematic-debugging

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

obra/superpowers · 21 tokens

local-ai-agents

Build local-first AI agents that run entirely on a developer workstation with Microsoft Foundry Local and Qwen function-calling models. Covers Small Language Models (SLMs), the OpenAI-compatible local endpoint, sandboxed local tools, local RAG with Chroma, local MCP servers, hybrid cloud/local routing, and the…

microsoft/ai-agents-for-beginners · 200 tokens

next-cache-components-adoption

Turn on Cache Components in a Next.js app and resolve the blocking routes it surfaces. Use when the user wants to enable, adopt, or migrate to Cache Components, flip the cacheComponents flag, work through a flood of blocking-prerender / instant validation errors, run the cache-components-instant-false codemod, or…

vercel/next.js · 95 tokens

next-cache-components-optimizer

Drive a Next.js route to instant navigation by setting up an agentic loop, under Cache Components / PPR, on initial load (hard navigation) and client-side navigation (soft navigation). Encode the goal as a failing @next/playwright instant() e2e and work it to green, one verified route at a time; the shipped test then…

vercel/next.js · 170 tokens

next-partial-prefetching-adoption

Turn on Partial Prefetching in a Next.js app and work through the insights it surfaces. Use when the user wants to enable or adopt Partial Prefetching, flip the partialPrefetching flag, opt routes in with export const prefetch = 'partial', audit Link prefetch={true} behavior, preserve existing prefetched UI with…

vercel/next.js · 103 tokens

chronicle

Analyze Copilot session history for standup reports, usage tips, session search, and session reindexing. Use when the user asks for a standup, daily summary, usage tips, workflow recommendations, wants to search or find past sessions by keyword/file/PR, wants to reindex their session store, or asks about deleting…

microsoft/vscode · 72 tokens