Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/konveyor-ecosystem/playpen-pf-mig-skillsnpx agentmods add skills/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inlineWrote 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/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inline)<a href="https://agentmods.dev/skills/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inline"><img src="https://agentmods.dev/badge/skills/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inline/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/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inline"><img src="https://agentmods.dev/badge/skills/konveyor-ecosystem/playpen-pf-mig-skills/code-migration-inline.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 | $0.00047 | $0.07818 |
| Opus 5 | $0.00023 | $0.03909 |
| Sonnet 5 | $0.00009 | $0.01564 |
| Haiku 4.5 | $0.00005 | $0.00782 |
Grade C, and why
code-migration scanned grade C with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Harvests environment variableshighData exfiltration
Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.
**5f. Collect credentials**: Extract `api_server`, `token`, `kubeconfig_path`, `ca_cert_path`, `context_name`, and `console_url`. Save to `$WORK_DIR/cluster-credentials.json`. Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
**5a. Prerequisites**: Verify `kubectl` and `curl` are available. If `kind` is not installed, install it: How it starts
The opening of the file, as written. The whole thing — 736 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Code Migration
Migrate applications by identifying issues from multiple sources, fixing them systematically, and validating the result.
Issue Sources
Collect issues from ALL of these sources during analysis.
| Source | Examples |
|---|---|
| Kantra analysis | Deprecated APIs, breaking changes, migration patterns |
| Build errors | Compilation failures, type errors, missing deps |
| Lint errors | Style violations, unused imports |
| Test failures | Broken tests from API changes |
| Target docs | Breaking changes Kantra doesn't detect (check targets/<target>.md) |
Kantra is a static source code analysis tool that uses rules to identify migration issues in the source code.
Phase 1: Discovery
Step 1: Explore Project Structure
Discover build system, test commands, and lint configuration.
Find build system:
| File Found | Build Command |
|---|---|
package.json |
npm run build or yarn build |
pom.xml |
mvn compile or mvn package |
build.gradle / build.gradle.kts |
./gradlew build |
Makefile |
make |
go.mod |
go build ./... |
Cargo.toml |
cargo build |
*.csproj / *.sln |
dotnet build |
Find test commands:
| Test Type | How to Find |
|---|---|
| Unit tests | Check package.json scripts for test, test:unit; or mvn test, go test ./... |
| Integration | Look for test:integration, test:e2e scripts |
| E2E | Look for Cypress (cypress run), Playwright (npx playwright test), or similar |
Find lint command:
| Tool | Detection |
|---|---|
| ESLint | .eslintrc* file → npm run lint or npx eslint . |
| Prettier | .prettierrc* file → npx prettier --check . |
| Go | golangci-lint run |
| Python | flake8, pylint, ruff |
Find dev server command:
Look for how to run the application locally (e.g., npm start, npm run dev).
Record findings:
Build: <command>
Dev server: <command>
Lint: <command>
Unit tests: <command>
Integration tests: <command>
E2E tests: <command>
Primary language: <language>
What ships with it
8 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.
- README.md 4.3 KB
- scripts/compare_screenshots.py 7.7 KB runs code
- scripts/filter_kantra_false_positives.py 5.1 KB runs code
- scripts/fix_deprecated_modal_wrapper.py 4.2 KB runs code
- scripts/generate_migration_report.py 19 KB runs code
- scripts/kantra_output_helper.py 10 KB runs code
- scripts/persistent_issues_analyzer.py 7.9 KB runs code
- targets/patternfly.md 16 KB
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.
- 9d ago First seen · 736 lines · 0 tokens per session scan C 648905581099
code-migration is a skill published in the GitHub repository konveyor-ecosystem/playpen-pf-mig-skills (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 47 tokens to every session and 7,818 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (harvests environment variables, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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