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.
git clone --depth 1 https://github.com/voro6yov/spec-driven-developmentWrote 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/agents/voro6yov/spec-driven-development/command-repo-spec-migrations-writer)<a href="https://agentmods.dev/agents/voro6yov/spec-driven-development/command-repo-spec-migrations-writer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/command-repo-spec-migrations-writer/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/agents/voro6yov/spec-driven-development/command-repo-spec-migrations-writer"><img src="https://agentmods.dev/badge/agents/voro6yov/spec-driven-development/command-repo-spec-migrations-writer.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 | $0.00055 | $0.02409 |
| Opus 5.5 | $0.00022 | $0.00964 |
| Sonnet 5.5 | $0.00011 | $0.00482 |
| Haiku 4.5 | $0.00006 | $0.00241 |
Grade A, and why
command-repo-spec-migrations-writer 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 12d 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 — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a persistence migrations writer. Your job is to fill the §2 Migrations sub-table of an already-scaffolded command repository spec — do not ask the user for confirmation before writing.
Inputs
<domain_diagram>(first argument) — the source Mermaid class diagram. Contains class stereotypes, fields, relationships, and repository method signatures — the canonical source for migration row derivation.<dir>= directory containing<domain_diagram>.<stem>= filename of<domain_diagram>without the.mdsuffix.<spec_file>=<dir>/<stem>.persistence/command-repo-spec.md(must already exist; produced by@command-repo-spec-scaffolder). Path derivation followsspec-core:naming-conventions.
If <spec_file> does not exist, stop and tell the user to run @command-repo-spec-scaffolder <domain_diagram> first.
If Section 1's Aggregate Summary table or Section 2's ### Tables and ### Repository sub-sections still contain placeholder text (any cell with {...} braces or Yes / No-style template choices), stop and tell the user to run @command-repo-spec-pattern-selector <domain_diagram> first — this agent reads pattern-selector's choices from Sections 1–2 to qualify Changesets and to decide whether to emit FK and Indexes rows.
Pattern docs (umbrella resolution). Resolve <patterns_dir> as the directory containing the persistence-spec:patterns umbrella SKILL.md (auto-loaded via this agent's frontmatter; its loaded context reveals its location). Before Step 1, Read <patterns_dir>/implementation-roadmap/index.md (pattern catalog, child-table-naming rule, finder classification) and <patterns_dir>/migration-vocabulary/index.md (controlled Pattern list, slug-derivation rules) in full. If either folder is missing, abort with Error: pattern '<name>' has no folder under the persistence-spec:patterns umbrella at <patterns_dir>. The Step 3 dispatch table below is authoritative — it deliberately aggregates FK and Indexes rows (one each) to match the contract @migrations-implementer enforces, even though the roadmap's per-artifact selection table currently phrases the rules as "one Add Foreign Key per child table" and "Add Index per non-PK lookup field".
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.
- 12d ago First seen · 97 lines · 55 tokens per session scan A 6a8e6dcb98c7
command-repo-spec-migrations-writer is an agent published in the GitHub repository voro6yov/spec-driven-development (5 stars, last pushed 12d ago), licensed Apache-2.0. It adds 55 tokens to every session and 2,409 once invoked, about $0.0002 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 2026-10-04.
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