Borrowing it
Nothing to install: this file belongs to phuryn/pm-brain. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/phuryn/pm-brain/main/.claude/skills/pm-brain/scaffold/.claude/commands/hypothesize.mdgit clone --depth 1 https://github.com/phuryn/pm-brainWrote 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.
[](https://agentmods.dev/commands/phuryn/pm-brain/hypothesize)<a href="https://agentmods.dev/commands/phuryn/pm-brain/hypothesize"><img src="https://agentmods.dev/badge/commands/phuryn/pm-brain/hypothesize/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.
<a href="https://agentmods.dev/commands/phuryn/pm-brain/hypothesize"><img src="https://agentmods.dev/badge/commands/phuryn/pm-brain/hypothesize.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00789 |
| Opus 5.5 | $0.00000 | $0.00316 |
| Sonnet 5.5 | $0.00000 | $0.00158 |
| Haiku 4.5 | $0.00000 | $0.00079 |
Grade A, and why
hypothesize 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.
How it starts
The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/hypothesize
Generate or refresh hypotheses for a feature. Works pre-ship (proactive, organized by the 5 risk areas) or post-ship (data-derived from analytics / interviews / churn — "why is retention dropping?"). Same schema either way; the Origin field distinguishes them.
Input
A feature slug (/hypothesize weekly-digest), a problem statement (/hypothesize "mid-market onboarding drop-off"), or an existing hypothesis file to refresh (/hypothesize hypotheses/weekly-digest.md).
If the feature has no existing file yet, the command creates one. If it does, the command refreshes — opening new candidate hypotheses where evidence has accumulated, and surfacing any existing ones whose evidence has gone stale.
Loads
hypotheses/<slug>.mdif it exists (refresh mode)knowledge/product/features/<slug>.md(if the feature exists in product knowledge)knowledge/strategy.md— non-goals, priorities, north-star (so the hypotheses don't violate strategic constraints)knowledge/users/insights.mdand any relevantpersonas.md/segments.md- Recent
ingestion/filtered to this feature / problem space (interviews, meeting notes, market signals — last ~10 entries) decisions/filtered to ones that constrain or invalidate hypothesis space for this featurehypotheses/_SCHEMA.md— load before writing or refreshing any hypothesis file
Updates
hypotheses/<slug>.md— created (new feature) or appended (refresh mode). Each new hypothesis carries: belief, origin (proactive | data-derived from<source>), confidence (always start atlowfor new hypotheses), evidence-for / evidence-against (tagged), open questions, test plan, decision trigger, status (active).hypotheses/INDEX.md— add the file under the appropriate status section if newly created; update status if a hypothesis flipped state.- Maintenance log entry — one-line note that hypotheses were generated/refreshed for
<feature>with a count of new and modified.
Hard constraints:
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.
- 1mo ago First seen · 42 lines · 0 tokens per session scan A 824688d9bbee
hypothesize is a command published in the GitHub repository phuryn/pm-brain (941 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 789 tokens. 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.
Other commands, from other repositories
youtube
Extract transcript, metadata, and top comments from a YouTube video - summarized via Gemini (free tier) or Grok and saved to vault. Add --visual to also read the video's frames (scene detection).
obsidian-retrieval-eval
Measure how well vault search finds the right note for a natural-language question - recall@k and MRR, with the concrete failures.
x-read
Deep-read an X (Twitter) post via Grok xsearch - verbatim post, thread, TL;DR, claims, reply sentiment, voices to watch.
obsidian-checkin
Ask the owner whether old people and project notes still hold - shows what each note says and when it was last checked, re-asks until answered, saves the news.
obsidian-distill
Condense a long note or source into key claims, each tagged with provenance back to the exact source block it came from.
obsidian-merge
Merge two near-duplicate notes found by /obsidian-health into one - dry run by default, redirects the retired note rather than deleting it.