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 agentmods add skills/ramboz/jig/migratenpx skills add ramboz/jig --skill migrategit clone --depth 1 https://github.com/ramboz/jigWrote 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/ramboz/jig/migrate)<a href="https://agentmods.dev/skills/ramboz/jig/migrate"><img src="https://agentmods.dev/badge/skills/ramboz/jig/migrate.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 | $0.00151 | $0.08531 |
| Opus 5 | $0.00076 | $0.04265 |
| Sonnet 5 | $0.00030 | $0.01706 |
| Haiku 4.5 | $0.00015 | $0.00853 |
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 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 — 720 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spec 008 created this skill from scratch. The deterministic filesystem walk + verdict logic + report rendering live in
migrate.py; this SKILL.md drives the judgment layer (when to invoke, how to interpret ambiguities, what operations to suggest in what order).
What this skill does
Closes the "already spec-driven" gap that scaffold-init doesn't handle:
projects that organically grew the same workflow jig codifies but landed
on different conventions (folder names, filename prefixes, slice
topology). Direct example: a project with docs/slices/ (flat) and
docs/decisions/ (validator-style) — scaffold-init would not detect
it as scaffolded and would either refuse confusingly or pollute the
tree.
migrate flips that around: detect existing shape first, then propose
a migration plan, then (in later slices) apply the rename / restructure
operations.
migrate.py exposes six subcommands:
report— strictly read-only inventory + plan.adopt-layout— validates an existing custom-root corpus and writes only itsscaffold.jsonsentinel/config; supports--dry-run.rename-decisions— applies ADR-0004's rename. Idempotent; refuses on conflict; has a--dry-runmode;--host claude|codexselects whether cross-reference rewrites scanCLAUDE.md/.claude/orAGENTS.md/.codex/.split-slices— extracts embedded slice sections into sibling slice files.seed-decisions— seedsdocs/decisions/lightweight-decisions.mdfrom jig's template. Idempotent; supports--dry-runand--docs-root; never overwrites an existing file.copy-machinery— copies jig runtime machinery into the target's host-local scaffold runtime;--host claudewrites.claude/, and--host codexwrites.codex/.
How to use
Run the migration report
python3 "${CLAUDE_PLUGIN_ROOT}/skills/migrate/migrate.py" report \
<project-dir> [--docs-root <relative-root>]
<project-dir>— path to the project root (e.g./path/to/repo,.for cwd).--docs-root .— inventory a track-local corpus whosespecs/,decisions/,workflow.md, andarchitecture.mdlive directly under the selected subproject instead of underdocs/.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 First seen · 720 lines · 151 tokens per session scan A 4b14d6c765b6
migrate is a skill published in the GitHub repository ramboz/jig (6 stars, last pushed 2d ago), licensed MIT. It adds 151 tokens to every session and 8,531 once invoked, about $0.0008 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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