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 dayvisonassis/sdd-skills --skill gate-buildergit clone --depth 1 https://github.com/dayvisonassis/sdd-skillsWrote 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/dayvisonassis/sdd-skills/gate-builder)<a href="https://agentmods.dev/skills/dayvisonassis/sdd-skills/gate-builder"><img src="https://agentmods.dev/badge/skills/dayvisonassis/sdd-skills/gate-builder.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 | $0.00099 | $0.05867 |
| Opus 5 | $0.00049 | $0.02933 |
| Sonnet 5 | $0.00020 | $0.01173 |
| Haiku 4.5 | $0.00010 | $0.00587 |
Grade A, and why
gate-builder 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 6d 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 — 249 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Gate Builder
Construct the deterministic quality gates of a project — the automated, pass/fail checks that guard structural and behavioral integrity (see https://github.com/dayvisonassis/sdd-skills/blob/main/docs/Como_criar_gates.md). The skill reads the analysis reports, decides which gates the project needs, proposes a plan, and — after confirmation — writes the gate configs/scripts and a single orchestration entry point (runGate), verifying each gate actually runs.
Where this fits the SDD flow:
gate-builderbuilds the gate infrastructure that must exist before features are spec'd. Later,spec-writerdeclares these gates (byid) in each feature'scontract.md, andimplement-feature/evaluatorexecute them. Seehttps://github.com/dayvisonassis/sdd-skills/blob/main/docs/Fluxo_SDD_e_Implementacao_das_Skills.mdandhttps://github.com/dayvisonassis/sdd-skills/blob/main/docs/Como_criar_gates.md.
INPUT
Free-form. The skill needs:
- Deep Analysis Report (primary source) — produced by the
deep-analyzeragent. Provides cross-cutting patterns, anti-patterns, test gaps, config-access patterns (e.g. scatteredprocess.env), and complexity. - Architecture Analysis Report (secondary source) — produced by the
architecture-analyzeragent. Provides the stack/runtime/framework, dependency inventory, and the test infrastructure/tooling. - Auto-discovery: if paths are not passed, look in
docs/architecture/for the most recentdeep-analysis-*.md(primary) andarchitecture-analysis-*.md(secondary). - Optional free-form overrides — e.g. "lint only", "no dead-code gate", "strict zero-warnings now", "don't touch package.json".
If neither report is found, the skill can still operate in a reduced mode by reading the codebase directly (see Edge Cases), but the reports are strongly preferred — request them if the codebase is large/ambiguous.
OUTPUT
- Phase 1 — a Gate Plan (chat + saved doc): which gates, which commands/configs, greenfield vs. brownfield strategy, and the
runGateorder. Each gate gets a stableid(typecheck,lint,build,tests,arch,deadcode, ...) — the sameidspec-writer will use incontract.md. - Phase 2 — after confirmation — the gate infrastructure: config files, scripts,
package.json(or equivalent) entries, and therunGateorchestrator, plus a shortGATES.mddocumenting how to run them. - A verification report: each gate executed once, with pass/fail and notes (especially the brownfield baseline of pre-existing warnings/failures).
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.
- 6d ago First seen · 249 lines · 99 tokens per session scan A f1dcf87cee87
gate-builder is a skill published in the GitHub repository dayvisonassis/sdd-skills (1 stars, last pushed 10d ago), licensed MIT. It adds 99 tokens to every session and 5,867 once invoked, about $0.0005 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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