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 brain-bootstrap/claude-code-brain-bootstrap --skill migrategit clone --depth 1 https://github.com/brain-bootstrap/claude-code-brain-bootstrapWrote 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/brain-bootstrap/claude-code-brain-bootstrap/migrate)<a href="https://agentmods.dev/skills/brain-bootstrap/claude-code-brain-bootstrap/migrate"><img src="https://agentmods.dev/badge/skills/brain-bootstrap/claude-code-brain-bootstrap/migrate/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/brain-bootstrap/claude-code-brain-bootstrap/migrate"><img src="https://agentmods.dev/badge/skills/brain-bootstrap/claude-code-brain-bootstrap/migrate.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 | $0.00032 | $0.00312 |
| Opus 5.5 | $0.00013 | $0.00125 |
| Sonnet 5.5 | $0.00006 | $0.00062 |
| Haiku 4.5 | $0.00003 | $0.00031 |
Grade A, and why
migrate 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
Migrate Skill
Run database/schema migrations in non-interactive mode.
Usage
/migrate up # Run pending migrations
/migrate down # Roll back last migration
/migrate rollback # Same as down
/migrate status # Show migration status
/migrate create name # Create a new migration file
Instructions
Read claude/build.md for the actual migration commands configured for this project.
Determine action from $ARGUMENTS:
| Argument | Action |
|---|---|
up or migrate |
{{MIGRATE_UP_CMD}} |
down or rollback |
{{MIGRATE_DOWN_CMD}} |
status |
{{MIGRATE_STATUS_CMD}} |
create <name> |
{{MIGRATE_CREATE_CMD}} <name> |
⚠️ Migration Safety Rules:
- NEVER mix DDL and DML in the same migration
- Test rollback after every new migration: run
up→ verify → rundown→ runupagain - Column names:
snake_case, scoped by table, no redundant prefixes - For irreversible migrations (column drop, type change): require explicit user confirmation
- NEVER run migrations directly on production without a backup confirmation
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 · 39 lines · 32 tokens per session scan A 8ded6f5f7ba8
migrate is a skill published in the GitHub repository brain-bootstrap/claude-code-brain-bootstrap (11 stars, last pushed 5mo ago), licensed MIT. It adds 32 tokens to every session and 312 once invoked, about $0.0001 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 2026-09-03.
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