Borrowing it
Nothing to install: this file belongs to okuzpe/midas-harness. 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/okuzpe/midas-harness/main/.agents/skills/define-conventions/SKILL.mdgit clone --depth 1 https://github.com/okuzpe/midas-harnessWrote 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/okuzpe/midas-harness/define-conventions)<a href="https://agentmods.dev/skills/okuzpe/midas-harness/define-conventions"><img src="https://agentmods.dev/badge/skills/okuzpe/midas-harness/define-conventions.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 | $0.00043 | $0.01628 |
| Opus 5 | $0.00022 | $0.00814 |
| Sonnet 5 | $0.00009 | $0.00326 |
| Haiku 4.5 | $0.00004 | $0.00163 |
Grade A, and why
define-conventions 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 3d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
define-conventions (Phase 5 — architecture-as-rules + design system)
Guard + state:
<paths.engine>/templates/skill-state-ritual.md(+AGENTS.md§ Safety / Path resolution). Prompt tool:AskQuestion. On Claude Code, fall back toAskUserQuestionif AskQuestion is not wired. Readpaths.state. Precondition:stage: tech_architecturepassed (orarchitecture_rulesresuming). Missing{product}/architecture.mdor ADRs → stop.
Does / Does not
| Does | Does not |
|---|---|
Encode arch into CHECKABLE <paths.rules>/* + design system |
Self-advance stage (orchestrator audits gate) |
| Scaffold enforcement + re-render adapters | Hand-edit generated .cursor/rules/*, .windsurf/rules/* |
Freeze gate verdict to {runs}/audits/gate-05.md on pass (seed: <paths.engine>/templates/gate-record.md) |
Block on /midas-tribunal (optional pre-rules-freeze checkpoint) |
Keystone: vague rules weaken every Phase-8 audit. Orchestrate decides; build writes files. Full pipeline steps + artifact table: <paths.engine>/pipeline/5-architecture-rules.md.
When NOT
- Architecture / ADRs missing →
/choose-architecture. - Rules already frozen and you need a sprint plan →
/plan-sprints(amend overlays via capture/ADR, not a silent re-freeze). - Adapter drift only →
/midas-doctor(does not replace this keystone).
Anti-rationalization: “we’ll add CHECKs later” is a fail — every new rule ships with a CHECK line in this phase.
Inputs: paths.state, {product}/architecture.md, {product}/adr/ADR-*.md, <paths.engine>/conventions.md, <paths.engine>/rules/, <paths.rules>/, token files.
Procedure (summary — detail in pipeline doc)
1. CHECKABLE rules → <paths.rules>/
folder-structure.md(mandatory): canonical tree + import/boundary rules. Feature/module layouts encode Scope Rule (1 consumer = local, 2+ = shared) and screaming folder names (user jobs, not technical-layer top-level). Layered/hexagonal ADRs win on conflict — cite the ADR. Seed:<paths.engine>/templates/folder-structure.md.- Stack rules — Context7-verified at pinned version per
<paths.engine>/rules/context7-usage.md; shape from<paths.engine>/templates/stack-rule.md. Cover canonical idiom + lint set (not naming-only). Each carriesdocs: <lib>@<version> via <tool>. Each has a CHECK line. Name lint plugins that mechanize them. {product}/conventions.md— prose overrides only; never restate base.
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.
- 3d ago Changed · +1 lines 0c43737afa39
- 8d ago First seen · 84 lines · 43 tokens per session scan A d4980be3b579
define-conventions is a skill published in the GitHub repository okuzpe/midas-harness (2 stars, last pushed 3d ago), licensed Apache-2.0. It adds 43 tokens to every session and 1,628 once invoked, about $0.0002 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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