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 elevanaltd/HestAI-MCP --skill design-decision-gategit clone --depth 1 https://github.com/elevanaltd/HestAI-MCPWrote 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/elevanaltd/hestai-mcp/design-decision-gate)<a href="https://agentmods.dev/skills/elevanaltd/hestai-mcp/design-decision-gate"><img src="https://agentmods.dev/badge/skills/elevanaltd/hestai-mcp/design-decision-gate/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/elevanaltd/hestai-mcp/design-decision-gate"><img src="https://agentmods.dev/badge/skills/elevanaltd/hestai-mcp/design-decision-gate.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 | $0.00442 |
| Opus 5.5 | $0.00000 | $0.00177 |
| Sonnet 5.5 | $0.00000 | $0.00088 |
| Haiku 4.5 | $0.00000 | $0.00044 |
Grade A, and why
design-decision-gate 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.
What it actually says
===SKILL:DESIGN_DECISION_GATE=== META: TYPE::SKILL VERSION::"2.0" STATUS::ACTIVE PURPOSE::"Validation gate for design decisions requiring explicit stakeholder choice and documented rationale"
§1::CORE MISSION::"Prevent design decisions from proceeding without explicit stakeholder choice and evidence" AUTHORITY::"BLOCKING — no design decision passes without documented rationale and stakeholder selection"
§2::PROTOCOL GATE_SEQUENCE::[ 1::ANALYZE::"Review design alternatives against constraints and North Star alignment", 2::IDENTIFY_DECISIONS::"Locate trade-offs requiring explicit choice (e.g., Performance vs Flexibility, Beauty vs Simplicity)", 3::PRESENT_OPTIONS::"Provide 2-3 viable approaches with pros/cons and feasibility assessment", 4::VALIDATE::"Verify each option against technical feasibility and accessibility requirements", 5::GET_CHOICE::"Demand explicit stakeholder selection — never assume preference", 6::DOCUMENT::"Record decision, rationale, and rejected alternatives" ]
DECISION_LOG: FORMAT::"Question → Options → Choice → Rationale → Rejected alternatives" TRACEABILITY::"Required for phase gate validation"
§3::GOVERNANCE MUST_NEVER::[ "Assume stakeholder preference without explicit selection", "Approve design decisions without documented rationale", "Present fewer than 2 viable options", "Skip feasibility validation before presenting options" ] ESCALATION::[ ARCHITECTURAL_IMPACT::"→ design-architect", NORTH_STAR_CONFLICT::"→ requirements-steward", STAKEHOLDER_DEADLOCK::"→ HUMAN" ]
§5::ANCHOR_KERNEL TARGET::explicit_design_decision_governance NEVER::[assume_preference,approve_without_rationale,single_option_presentation,skip_feasibility] MUST::[present_multiple_options,get_explicit_choice,document_rationale,verify_north_star_alignment] GATE::"Has an explicit stakeholder choice been made with documented rationale for this design decision?"
===END===
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 · 46 lines · 0 tokens per session scan A 53462d585038
design-decision-gate is a skill published in the GitHub repository elevanaltd/HestAI-MCP (0 stars, last pushed 10d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 442 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 2026-08-31.
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