sequential-thinking

sequential-thinking is a skill for Gemini CLI from irahardianto/qurio. It costs 50 tokens per session (957 once invoked), scanned A, a copy of sequential-thinking, MIT.

A structured problem-solving method that works through a difficult question in revisable steps. It supports testing ideas, exploring alternatives, correcting earlier steps, and checking conclusions.

In plain words
What is it for?
Use it for multi-step planning, design, investigation, hypothesis checking, and problems whose full scope becomes clear gradually.
Why use it?
It helps keep complex reasoning organised when the solution is uncertain or requires backtracking.

Skill for Gemini CLI

Written for Gemini CLI: installed under .gemini/.

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

Made for: Gemini CLI.

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/qurio/sequential-thinking.svg)](https://agentmods.dev/skills/irahardianto/qurio/sequential-thinking)
Your own site
<a href="https://agentmods.dev/skills/irahardianto/qurio/sequential-thinking"><img src="https://agentmods.dev/badge/skills/irahardianto/qurio/sequential-thinking.svg" alt="Measured on agentmods" 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. Scan, not verified.
Origin 100% copy Near-identical to another mod 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 $0.00025 $0.00478
Sonnet 5 $0.00010 $0.00191
Haiku 4.5 $0.00005 $0.00096

Measured 6d ago against content hash 9f716bc179f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, 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 6d 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

This is a copy

100% identical to sequential-thinking — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.gemini/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. 6d 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/qurio (17 stars, last pushed 6mo ago), licensed MIT. It adds 50 tokens to every session and 957 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to sequential-thinking, differing in 0 lines, and is treated as a copy.