sequential-thinking

sequential-thinking is a skill for Claude Code, Codex from irahardianto/awesome-agv. It costs 50 tokens per session (957 once invoked), scanned A, original, MIT.

A structured method for solving complex problems through successive steps, revisions, alternative paths, and checks of possible explanations.

In plain words
What is it for?
It is for multi-step planning, analysis, hypothesis checking, and problems that may require backtracking.
Why use it?
It helps maintain context when a problem changes as you investigate it and makes it easier to correct earlier assumptions.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit It is for multi-step planning, analysis, hypothesis checking, and problems that may require backtracking.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/irahardianto/awesome-agv/sequential-thinking
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.

Any agent
npx skills add irahardianto/awesome-agv --skill sequential-thinking
Clone the repo
git clone --depth 1 https://github.com/irahardianto/awesome-agv

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/irahardianto/awesome-agv/sequential-thinking/github.svg)](https://agentmods.dev/skills/irahardianto/awesome-agv/sequential-thinking)
Your own site
<a href="https://agentmods.dev/skills/irahardianto/awesome-agv/sequential-thinking"><img src="https://agentmods.dev/badge/skills/irahardianto/awesome-agv/sequential-thinking/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for sequential-thinking

Your own site · 80×15
<a href="https://agentmods.dev/skills/irahardianto/awesome-agv/sequential-thinking"><img src="https://agentmods.dev/badge/skills/irahardianto/awesome-agv/sequential-thinking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 957 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00050 $0.00957
Opus 5.5 $0.00020 $0.00383
Sonnet 5.5 $0.00010 $0.00191
Haiku 4.5 $0.00005 $0.00096

Measured 1mo ago against content hash 9f716bc179f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

.agents/skills/sequential-thinking/SKILL.md · 130 lines

How it starts

The opening of the file, as written. The whole thing — 130 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sequential Thinking

A structured approach to complex problem-solving that breaks down challenges into iterative thought steps with built-in flexibility for revision and course correction.

When to Use This Skill

  • Breaking down complex problems into manageable steps
  • Planning and design requiring iterative refinement
  • Analysis that might need course correction mid-stream
  • Problems where the full scope emerges during analysis
  • Multi-step solutions requiring context across steps
  • Filtering out irrelevant information
  • Hypothesis generation and verification workflows

Core Methodology

Sequential thinking follows a dynamic process:

  1. Initial estimation: Start with an estimate of thoughts needed, but remain flexible
  2. Iterative analysis: Work through thoughts sequentially while building context
  3. Revision capability: Question or revise previous thoughts as understanding deepens
  4. Branch exploration: Explore alternative approaches when needed
  5. Hypothesis cycle: Generate hypotheses, verify against thought chain, repeat
  6. Convergence: Continue until reaching a satisfactory solution

Instructions

Thought Structure

Each thought in the sequence should include:

  • thought: Current thinking step content
  • thoughtNumber: Position in sequence (1, 2, 3, ...)
  • totalThoughts: Current estimate of total thoughts needed (adjustable)
  • nextThoughtNeeded: Whether another thought step is required

Optional revision/branching metadata:

  • isRevision: Boolean indicating if reconsidering previous thinking
  • revisesThought: Which thought number is being revised
  • branchFromThought: Branching point thought number
  • branchId: Identifier for current branch
  • needsMoreThoughts: Flag when reaching end but requiring more analysis

Process Guidelines

Starting out:

  • Estimate initial thoughts needed based on problem complexity
  • Begin with thought 1, establishing context and approach
  • Set totalThoughts conservatively; you can adjust later

Read the full file on GitHub · 130 lines

Files

What ships with it

1 file 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. 1mo ago First seen · 130 lines · 50 tokens per session scan A 9f716bc179f8

Subscribe to this mod's changes

sequential-thinking is a skill published in the GitHub repository irahardianto/awesome-agv (156 stars, last pushed 9d ago), licensed MIT. It adds 50 tokens to every session and 957 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-09-03.

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