hypothesis-generate-assumptions

hypothesis-generate-assumptions is a skill for Claude Code, Codex from panjose/Co-Scientist. It costs 22 tokens per session (804 once invoked), scanned A, original, Apache-2.0.

A step that creates one testable hypothesis by listing and combining assumptions. It reads research and strategy plans and saves the resulting hypothesis and its supporting records.

In plain words
What is it for?
Use it to generate a hypothesis candidate from a research plan, constraints, preferences, and—when applicable—a previous hypothesis review.
Why use it?
It turns a broad research goal into a single idea that can be checked instead of leaving assumptions unclear or scattered.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to generate a hypothesis candidate from a research plan, constraints, preferences, and—when applicable—a previous hypothesis review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/panjose/co-scientist/hypothesis-generate-assumptions
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 panjose/Co-Scientist --skill hypothesis-generate-assumptions
Clone the repo
git clone --depth 1 https://github.com/panjose/Co-Scientist

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 hypothesis-generate-assumptions

README.md
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Your own site
<a href="https://agentmods.dev/skills/panjose/co-scientist/hypothesis-generate-assumptions"><img src="https://agentmods.dev/badge/skills/panjose/co-scientist/hypothesis-generate-assumptions/github.svg" alt="Measured on agentmods" height="20"></a>

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Your own site · 80×15
<a href="https://agentmods.dev/skills/panjose/co-scientist/hypothesis-generate-assumptions"><img src="https://agentmods.dev/badge/skills/panjose/co-scientist/hypothesis-generate-assumptions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 804 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 $0.00022 $0.00804
Opus 5 $0.00011 $0.00402
Sonnet 5 $0.00004 $0.00161
Haiku 4.5 $0.00002 $0.00080

Measured 10d ago against content hash 195c46b7d6e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

hypothesis-generate-assumptions 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 10d 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.

skills/hypothesis-generate-assumptions/SKILL.md · 76 lines

What it actually says

hypothesis-generate-assumptions

Goal:

  • Generate exactly one hypothesis candidate by enumerating and combining testable assumptions.

Inputs:

  • research_plan/RESEARCH_PLAN.json
  • state/STRATEGY_PLAN.json
  • optional parent hypothesis and review artifacts when the round is part of an evolution continuation

Outputs:

  • hypotheses/<id>/HYPOTHESIS.json
  • hypotheses/<id>/HYPOTHESIS.md
  • hypotheses/<id>/ORIGIN.json

Context Loading:

  • Read research_plan/RESEARCH_PLAN.json.
  • Use research_goal as the objective that the assumption chain must explain or enable.
  • Use preferences as quality criteria.
  • Use constraints as hard boundaries.
  • Read state/STRATEGY_PLAN.json and confirm that the current round allows assumptions_identification_generation.
  • If the round is parented, read the selected parent hypothesis and its latest review summary before proposing a child. The new chain should address known weaknesses where possible.

Execution Prompt Contract:

  • System Intent:
    • You are generating one candidate hypothesis by surfacing the smallest useful chain of testable assumptions.
  • Required Reasoning Focus:
    • Identify 3-5 assumptions or fewer if a shorter chain is stronger.
    • Favor chains that are falsifiable, mechanistically informative, and non-trivial.
    • At least one link may be speculative, but it must remain testable and explicit.
    • Use the assumption chain to produce a full downstream hypothesis rather than stopping at the decomposition.
  • Do Not Do:
    • Do not output multiple competing chains as final answers.
    • Do not hide speculative links behind broad claims.
    • Do not emit assumptions without turning them into a full canonical hypothesis artifact.
  • Output Shape:
    • The result must contain the exact HypothesisContract from packages/agent_contracts/hypothesis.py.
    • If assumption structure is useful, keep it inside origin-level payloads or trace notes, not as a replacement for the canonical hypothesis.
    • origin.content.statement: 2-3 sentences maximum.
    • origin.content.mechanism: 2-3 sentences maximum.
    • origin.content.experimental_design: one concise multiline string with 3-6 numbered steps.
    • origin.content.experimental_design must remain one string field containing embedded line breaks; do not emit it as a list, array, or nested object.
    • origin.content.summary: one sentence.
    • origin.content.category: 1-5 words.

Execution Steps:

  1. Open skills/shared-references/schema-index.md, then read packages/agent_contracts/hypothesis.py and confirm the exact HypothesisContract shape before writing hypotheses/<id>/HYPOTHESIS.json.
  2. Read the required artifacts.
  3. Confirm that this round is allowed to use assumptions-driven generation.
  4. Identify the smallest useful chain of testable assumptions for the active goal.
  5. Synthesize the chain into exactly one candidate hypothesis.
  6. Wrap the result into the canonical HypothesisContract.
  7. Write hypotheses/<id>/HYPOTHESIS.json, hypotheses/<id>/HYPOTHESIS.md, and hypotheses/<id>/ORIGIN.json.
  8. Validate the emitted artifacts before declaring success.

Artifact Rules:

  • The canonical hypothesis artifact is mandatory.
  • Any auxiliary assumption tree must be treated as support for origin, not as a substitute for HYPOTHESIS.json.
  • The final hypothesis must remain understandable even if a downstream consumer only reads the canonical artifact.

Completion Rule:

  • This skill is complete only when exactly one new valid canonical hypothesis artifact has been written for the current round.
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. 10d ago First seen · 76 lines · 22 tokens per session scan A 195c46b7d6e4

Subscribe to this mod's changes

hypothesis-generate-assumptions is a skill published in the GitHub repository panjose/Co-Scientist (5 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 22 tokens to every session and 804 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 2026-08-31.

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