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 agentmods add skills/tupe12334/instinct/double-diamondnpx skills add tupe12334/instinct --skill double-diamondgit clone --depth 1 https://github.com/tupe12334/instinctWrote 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/tupe12334/instinct/double-diamond)<a href="https://agentmods.dev/skills/tupe12334/instinct/double-diamond"><img src="https://agentmods.dev/badge/skills/tupe12334/instinct/double-diamond.svg" alt="Measured on agentmods" 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 | $0.00025 | $0.02283 |
| Opus 5 | $0.00013 | $0.01141 |
| Sonnet 5 | $0.00005 | $0.00457 |
| Haiku 4.5 | $0.00003 | $0.00228 |
Grade A, and why
double-diamond 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 5d 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 — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Double Diamond
Overview
The Double Diamond is a design process model developed by the UK Design Council in 2005. It structures creative problem-solving into two back-to-back cycles of divergent and convergent thinking: the first diamond ensures you are solving the right problem; the second ensures you solve it right. Skip the first diamond and you risk building the wrong thing elegantly.
┌──────────────────────────────┬──────────────────────────────┐
│ DIAMOND 1 │ DIAMOND 2 │
│ "Are we solving the │ "Are we solving the │
│ right problem?" │ problem right?" │
├──────────────┬───────────────┼──────────────┬───────────────┤
│ DISCOVER │ DEFINE │ DEVELOP │ DELIVER │
│ (diverge) │ (converge) │ (diverge) │ (converge) │
├──────────────┼───────────────┼──────────────┼───────────────┤
│ Research │ Synthesize │ Ideate │ Prototype │
│ Observe │ Reframe │ Build drafts │ Test & learn │
│ Empathize │ Define HMW │ Experiment │ Ship or kill │
└──────────────┴───────────────┴──────────────┴───────────────┘
Phase Definitions
Discover — Diverge to understand the problem space
Open up. The goal is to gather raw evidence before forming opinions.
- Conduct user interviews, field observations, diary studies, or competitive reviews.
- Do not filter yet. Capture contradictions, edge cases, and surprises.
- Outputs: interview transcripts, observation notes, data, market research.
Define — Converge to frame the right problem
Close down. Synthesize everything from Discover into a single, testable problem statement.
- Cluster insights by theme (affinity mapping).
- Write a "How Might We" (HMW) question that is neither too broad ("improve healthcare") nor too narrow ("add a button on screen 3").
- Validate the framing: could solving this HMW address the root causes surfaced in Discover?
- Outputs: insight themes, HMW problem statement, design brief.
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.
- 5d ago First seen · 135 lines · 25 tokens per session scan A f1bfa3da1441
double-diamond is a skill published in the GitHub repository tupe12334/instinct (1 stars, last pushed 19d ago), licensed MIT. It adds 25 tokens to every session and 2,283 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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