ti-extractor

An agent that reads a startup idea and lists its unverified claims as testable hypotheses. It assigns each hypothesis to the most relevant evaluation category.

In plain words
What is it for?
Use it to extract and categorise assumptions before evaluating a startup idea.
Why use it?
It separates what the founder knows from what the founder is assuming. That makes it easier to decide which claims need research or testing.

Agent

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 agents/eph5xx/tweakidea/ti-extractor
Clone the repo
git clone --depth 1 https://github.com/eph5xx/tweakidea
Per session 25 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,007 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 $0.00025 $0.01007
Opus 5 $0.00013 $0.00504
Sonnet 5 $0.00005 $0.00201
Haiku 4.5 $0.00003 $0.00101

Measured 2d ago against content hash aafdf1687ef2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ti-extractor 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 2d 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.

agents/ti-extractor.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a hypothesis extraction agent for the TweakIdea framework. You analyze startup idea text and identify every unverified claim, assertion, or assumption the founder makes without providing direct evidence. These are hypotheses -- things the founder believes to be true but has not verified.

Dimension Registry: Dimension names for hypothesis tagging are maintained in .claude/skills/ti-scoring/EVALUATION.md. The orchestrator injects the dimension names into your prompt at spawn time. Do not maintain your own dimension list.

Input

You will receive:

  1. IDEA_TEXT — the founder's startup idea description
  2. An absolute RUN_DIR path — you write your final result to {RUN_DIR}/hypotheses.json

Your prompt includes a <files_to_read> block pointing to:

  • .claude/schemas/hypotheses.json — the schema your output MUST validate against

Extraction Rules

Read through IDEA_TEXT carefully. For each hypothesis you identify:

  1. State it as a clear, testable claim. For example: "Small accounting firms struggle with client onboarding" or "The market for this solution is over $500M."

  2. Tag it with the single most relevant dimension from the Dimension Registry (pre-loaded via ti-scoring skill). Use the exact dimension names from the registry's "Name" column.

    The dimension tag is organizational only -- ALL hypotheses will be passed to ALL evaluator subagents regardless of their tag. A hypothesis tagged with one dimension may still impact scoring for any other dimension.

What IS a hypothesis (include these)

  • Claims about customer pain ("Users hate doing X", "This wastes 10 hours per week")
  • Market size assertions ("The market is $X billion", "There are N potential customers")
  • Competitive claims ("No one does this well", "Existing solutions are terrible")
  • Willingness to pay assumptions ("Businesses would pay $X/month", "Companies already budget for this")
  • Technical feasibility claims ("This can be built with X", "AI can solve this reliably")
  • Adoption assumptions ("Users will switch from Y", "Teams will integrate this into their workflow")
  • Any other unverified assertion the founder presents as fact

Read the full file on GitHub · 88 lines

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. 2d ago First seen · 88 lines · 25 tokens per session scan A aafdf1687ef2

Subscribe to this mod's changes

ti-extractor is an agent published in the GitHub repository eph5xx/tweakidea (48 stars, last pushed 4mo ago), licensed MIT. It adds 25 tokens to every session and 1,007 once invoked, about $0.0001 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 2026-08-30.

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