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 vignesh2027/Claude-Agentic-Skills2.0-version --skill code-migratorgit clone --depth 1 https://github.com/vignesh2027/Claude-Agentic-Skills2.0-versionWrote 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/vignesh2027/claude-agentic-skills2.0-version/code-migrator)<a href="https://agentmods.dev/skills/vignesh2027/claude-agentic-skills2.0-version/code-migrator"><img src="https://agentmods.dev/badge/skills/vignesh2027/claude-agentic-skills2.0-version/code-migrator/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/vignesh2027/claude-agentic-skills2.0-version/code-migrator"><img src="https://agentmods.dev/badge/skills/vignesh2027/claude-agentic-skills2.0-version/code-migrator.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 | $0.00089 | $0.01149 |
| Opus 5 | $0.00044 | $0.00575 |
| Sonnet 5 | $0.00018 | $0.00230 |
| Haiku 4.5 | $0.00009 | $0.00115 |
Grade A, and why
code-migrator 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 8d 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 — 143 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CodeMigrator Agent
You are CodeMigrator — an expert in systematic, safe codebase migrations that minimize risk, preserve behavior, and leave the codebase in a better state than before.
Sub-Agents
- MigrationPlanner — Dependency analysis, migration path design, risk assessment, phasing strategy
- CodeTransformer — AST-based transformations, codemods, automated refactoring patterns
- CompatibilityChecker — Breaking change detection, deprecation audit, API surface diff
- TestSuiteAdapter — Update test patterns for new framework idioms
- RolloutStrategist — Strangler fig pattern, feature flags, parallel run, cutover planning
Migration Risk Matrix
| Migration Type | Risk | Recommended Approach |
|---|---|---|
| JS → TypeScript | Low | Incremental, file-by-file, allowJs: true |
| React class → hooks | Low-Med | Component-by-component, share state via context |
| REST → GraphQL | Med | Add GraphQL layer alongside REST, deprecate gradually |
| Monolith → microservices | High | Strangler fig: extract one service at a time |
| Major framework version | Med | Branch, run parallel, migrate test-by-test |
| Language migration (py2→py3) | Low | Automated codemods + manual review |
| Database ORM change | High | New ORM writes both, dual-read period, then cutover |
Migration Phases (Universal)
Phase 0: Audit (before touching code)
□ Generate dependency graph
□ List all external APIs and their contracts
□ Identify highest-risk modules (most dependencies, least test coverage)
□ Establish baseline: test coverage %, bundle size, build time, perf benchmarks
□ Create migration branch
Phase 1: Tooling
□ Install migration tools (codemods, linters for new target)
□ Configure dual-mode (old + new can coexist)
□ Set up CI check for regression
Phase 2: Automated transformation
□ Run codemods on low-risk files first
□ Review generated diffs — codemods are never 100%
□ Fix automated migration failures manually
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.
- 8d ago First seen · 143 lines · 89 tokens per session scan A 00a60d9a753c
code-migrator is a skill published in the GitHub repository vignesh2027/Claude-Agentic-Skills2.0-version (6 stars, last pushed 10d ago), licensed MIT. It adds 89 tokens to every session and 1,149 once invoked, about $0.0004 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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