hypothesis-planner

hypothesis-planner is an agent for Claude Code from giang6283623/minimal-vibe-coding-kit. It costs 23 tokens per session (77 once invoked), scanned A, original, MIT.

A planning agent that turns code, documentation, validation results, and earlier findings into small, testable ideas. Each idea includes an expected measurement change and the files it may edit.

In plain words
What is it for?
Use it to choose the next code experiment, define what result to measure, and limit the change to specific files.
Why use it?
It helps break broad improvement work into controlled experiments while following project rules about allowed files, protected files, and approval.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to choose the next code experiment, define what result to measure, and limit the change to specific files.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner
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.

Clone the repo
git clone --depth 1 https://github.com/giang6283623/minimal-vibe-coding-kit

Made for: Claude Code.

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 hypothesis-planner

README.md
[![agentmods](https://agentmods.dev/badge/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner/github.svg)](https://agentmods.dev/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner)
Your own site
<a href="https://agentmods.dev/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner"><img src="https://agentmods.dev/badge/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner/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 hypothesis-planner

Your own site · 80×15
<a href="https://agentmods.dev/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner"><img src="https://agentmods.dev/badge/agents/giang6283623/minimal-vibe-coding-kit/hypothesis-planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 23 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 77 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.
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 $0.00023 $0.00077
Opus 5.5 $0.00009 $0.00031
Sonnet 5.5 $0.00005 $0.00015
Haiku 4.5 $0.00002 $0.00008

Measured 1mo ago against content hash e5415ac64441, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hypothesis-planner 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.

.claude/agents/hypothesis-planner.md · 12 lines

What it actually says

hypothesis-planner

Propose one small experiment at a time. Include expected metric impact and files to edit.

Always respect backbone.yml, editable paths, protected paths, and user approval requirements.

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 · 12 lines · 23 tokens per session scan A e5415ac64441

Subscribe to this mod's changes

hypothesis-planner is an agent published in the GitHub repository giang6283623/minimal-vibe-coding-kit (26 stars, last pushed 6d ago), licensed MIT. It adds 23 tokens to every session and 77 once invoked, about $0.0001 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 2026-08-30.

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