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.
npx skills add tomzx/agents --skill map-assumptionsgit clone --depth 1 https://github.com/tomzx/agentsWrote 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/skills/tomzx/agents/map-assumptions)<a href="https://agentmods.dev/skills/tomzx/agents/map-assumptions"><img src="https://agentmods.dev/badge/skills/tomzx/agents/map-assumptions/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/skills/tomzx/agents/map-assumptions"><img src="https://agentmods.dev/badge/skills/tomzx/agents/map-assumptions.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 | $0.00035 | $0.00498 |
| Opus 5.5 | $0.00014 | $0.00199 |
| Sonnet 5.5 | $0.00007 | $0.00100 |
| Haiku 4.5 | $0.00003 | $0.00050 |
Grade A, and why
map-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 22d 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.
What it actually says
Map Assumptions
Validate begins by stating explicitly what is currently unstated. For the opportunity that survived the Discover gate, enumerate everything that must be true for it to work, then rank by leverage (impact x uncertainty) so the next skill tests the few assumptions whose falsity would end the effort.
Prerequisites
- Apply the shared PDLC conventions in
skills/pdlc/references/shared.md. opportunity-tree.mdwith aproceedgate from Discover.
Steps
- Read the chosen opportunity and its candidate solutions from
opportunity-tree.md. - Surface assumptions across four categories:
- Desirability — do they want this? (problem real, willingness to adopt/pay)
- Viability — does it work for the business? (pricing, unit economics, channel)
- Feasibility — can we build/operate it? (tech, data, ops, partners)
- Usability — can they actually use it? (workflow fit, effort)
- For each assumption, record: the belief, why it matters, current confidence (low/med/high), and the evidence that would change your mind.
- Rank by leverage = impact (if false, how bad) x uncertainty (how unsure). The top 1-3 are the leap-of-faith assumptions — the ones Validate must test.
- Write
assumptions.mdto the initiative directory.
Output Format
Use the template at skills/pdlc/templates/initiatives/assumptions.md.
Carry the standard initiative frontmatter with phase: validate.
Outcome
If $OUTCOME_YAML is set, emit verdict: drafted.
Completion Checklist
- Assumptions cover all four categories (desirability, viability, feasibility, usability)
- Each assumption has a confidence level and a falsifying signal
- The top 1-3 leap-of-faith assumptions are explicitly marked
Next Step
Load design-experiment to design the cheapest decisive test for the top leap-of-faith assumptions.
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.
- 22d ago Changed · +7 lines 3a09f28080dc
- 24d ago Changed 487fa0e24636
- 1mo ago First seen · 45 lines · 35 tokens per session scan A 0dd074f73a0f
map-assumptions is a skill published in the GitHub repository tomzx/agents (13 stars, last pushed yesterday), licensed MIT. It adds 35 tokens to every session and 498 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 2026-09-03.
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