think

think is a skill for Claude Code, Codex from agentculture/arxivist. It costs 191 tokens per session (2,732 once invoked), scanned A, a copy of think, MIT.

A structured way to turn a vague feature idea into a buildable specification. It works backwards from the announcement you would make after launch, testing each claim and recording what remains unknown.

In plain words
What is it for?
Use it to examine an idea, ask hard questions, track open vagueness, and export a specification once the idea is clear enough to build.
Why use it?
It prevents teams from starting development with unclear goals, hidden assumptions, or unresolved questions.

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/agentculture/arxivist/think
Any agent
npx skills add agentculture/arxivist --skill think
Clone the repo
git clone --depth 1 https://github.com/agentculture/arxivist

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 think

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentculture/arxivist/think.svg)](https://agentmods.dev/skills/agentculture/arxivist/think)
Your own site
<a href="https://agentmods.dev/skills/agentculture/arxivist/think"><img src="https://agentmods.dev/badge/skills/agentculture/arxivist/think.svg" alt="Measured on agentmods" height="20"></a>
Per session 191 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,732 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 $0.00191 $0.02732
Opus 5 $0.00096 $0.01366
Sonnet 5 $0.00038 $0.00546
Haiku 4.5 $0.00019 $0.00273

Measured 3d ago against content hash 3aced3418555, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

think 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/think.sh), 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.

Origin

This is a copy

100% identical to think — 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.

.claude/skills/think/SKILL.md · 202 lines

How it starts

The opening of the file, as written. The whole thing — 202 lines — stays where its author put it; the contents beside it link to each section on GitHub.

think — work an idea backwards into a buildable spec

The skill is named think; the product/CLI it drives is devague. (The forward leg — turning a converged spec into a plan — is the sibling /spec-to-plan skill, which drives devague plan.)

think turns a vague feature idea into a buildable spec by working backwards: you start from the announcement you'd make if it had already shipped, then build an Announcement Frame by capturing claims, pressure -testing them, parking what's still genuinely unknown, and only exporting once the frame converges.

The CLI is deterministic and move-driven — it is not a wizard. There is no fixed sequence of prompts. You (the agent) choose the next move; the CLI just tracks state and tells you what's still missing. Run devague learn for the canonical ten-stage arc and devague explain <move> for any single move.

This skill is the operator: a portable wrapper that resolves the CLI and forwards every move verbatim — including status, the read-only verb that reads the convergence gate and tells you the recommended next move.

How to run

The entry point is scripts/think.sh. Invoke it from the repository you are speccing (frames persist under .devague/ in the current directory):

bash .claude/skills/think/scripts/think.sh <move> [args...]
bash .claude/skills/think/scripts/think.sh status

It resolves the CLI portably — an installed devague on PATH (the normal case), falling back to uv run devague when you are inside the devague checkout. If neither resolves it prints an install hint (uv tool install devague). Every move — including status — is forwarded verbatim, so you can equally call the CLI directly (devague <move> …) when it is installed; the wrapper exists only for portable resolution.

Moves

Move What it does
new "<announcement>" Start a frame from the announcement (the first move). Seeds an auto-confirmed announcement claim.
capture --kind <kind> "<text>" Record + classify a claim. --origin llm lands it as proposed.
interrogate <id> --honesty "…" Attach an honesty condition (what must be true). Also --hard-question, --risk, --contradicts, --blocking.
confirm <id> [<id>…] / reject <id> [<id>…] Resolve one or more claims (c*) / honesty conditions (h*) in one transactional call. User-only decision. Also confirm --from-review <file> to apply an edited review artifact.
review List every proposed (unconfirmed) claim + honesty condition with ids (--json too); writes a non-authoritative artifact to .devague/reviews/<slug>.md. Un-gated; never mutates.
question "<text>" Record / list / --resolve a pending user decision as durable working state in .devague/questions/<slug>.md.
park "<text>" --kind <kind> Move uncertainty into first-class open vagueness instead of forcing an answer.
converge Evaluate the gate; list remaining gaps.
export Write the buildable spec to docs/specs/ — only after converge passes.
status Read-only: where the frame stands + the recommended next move (--json too).
show / list Render a frame / list frames (--json for raw state).
learn / explain <move> Teach the method / explain one move.

Read the full file on GitHub · 202 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. 3d ago First seen · 202 lines · 191 tokens per session scan A 3aced3418555

Subscribe to this mod's changes

think is a skill published in the GitHub repository agentculture/arxivist (2 stars, last pushed 1mo ago), licensed MIT. It adds 191 tokens to every session and 2,732 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to think, differing in 0 lines, and is treated as a copy.

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