{"slug":"ombulabs-rails-upgrade","name":"rails-upgrade","description":"Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook.","long_description":"---\nname: rails-upgrade\ndescription: Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook.\n---\n\n# Rails Upgrade Assistant Skill\n\n## Skill Identity\n- **Name:** Rails Upgrade Assistant\n- **Purpose:** Intelligent Rails application upgrades from 2.3 through 8.1\n- **Skill Type:** Modular with external workflows and examples\n- **Upgrade Strategy:** Sequential only (no version skipping)\n- **Methodology:** Based on FastRuby.io upgrade best practices and \"The Complete Guide to Upgrade Rails\" ebook\n- **Attribution:** Content based on \"The Complete Guide to Upgrade Rails\" by FastRuby.io (OmbuLabs)\n\n---\n\n## Dependencies\n\n- **dual-boot skill** ([github.com/ombulabs/claude-code_dual-boot-skill](https://github.com/ombulabs/claude-code_dual-boot-skill)) — Sets up and manages dual-boot environments using the `next_rails` gem. Covers setup, `NextRails.next?` code patterns, CI configuration, and post-upgrade cleanup. Must be installed for Step 2 of the upgrade workflow.\n- **rails-load-defaults skill** ([github.com/ombulabs/claude-code_rails-load-defaults-skill](https://github.com/ombulabs/claude-code_rails-load-defaults-skill)) — Handles incremental `load_defaults` updates with tiered risk assessment (Tier 1: low-risk, Tier 2: needs codebase grep, Tier 3: requires human review). Used as the final step after the Rails version upgrade is complete.\n\n---\n\n## Core Methodology (FastRuby.io Approach)\n\nThis skill follows the proven FastRuby.io upgrade methodology:\n\n1. **Incremental Upgrades** - Always upgrade one minor/major version at a time\n2. **Assessment First** - Understand scope before making changes\n3. **Dual-Boot Testing** - Test both versions during transition using `next_rails` gem\n4. **Test Coverage** - Ensure adequate test coverage before upgrading (aim for 80%+)\n5. **Gem Compatibility** - Check gem compatibility at each step using RailsBump\n6. **Deprecation Warnings** - Address deprecations before upgrading\n7. **Backwards Compatible Changes** - Deploy small changes to production before version bump\n\n**Key Resources:**\n- **DELEGATE** to the `dual-boot` skill for dual-boot setup with `next_rails` (see Dependencies)\n- See `references/deprecation-warnings.md` for managing deprecations\n- See `references/staying-current.md` for maintaining upgrades over time\n\n---\n\n## CRITICAL: Dual-Boot Code Pattern with `NextRails.next?`\n\nWhen proposing code fixes that must work with both the current and target Rails versions (dual-boot), **always use `NextRails.next?` from the `next_rails` gem** — never use `respond_to?` or other feature-detection patterns.\n\n**DELEGATE** to the `dual-boot` skill for:\n- Setup and initialization (`next_rails --init`, `Gemfile.next`)\n- `NextRails.next?` code patterns and examples\n- CI configuration for dual-boot testing\n- Post-upgrade cleanup (removing dual-boot branches)\n\n**DEPENDENCY:** Requires the [dual-boot skill](https://github.com/ombulabs/claude-code_dual-boot-skill)\n\n---\n\n## Trigger Patterns\n\nClaude should activate this skill when user says:\n\n**Upgrade Requests:**\n- \"Upgrade my Rails app to [version]\"\n- \"Help me upgrade from Rails [x] to [y]\"\n- \"What breaking changes are in Rails [version]?\"\n- \"Plan my upgrade from [x] to [y]\"\n- \"What Rails version am I using?\"\n- \"Analyze my Rails app for upgrade\"\n- \"Find breaking changes in my code\"\n- \"Check my app for Rails [version] compatibility\"\n\n**Specific Report Requests:**\n- \"Show me the app:update changes\"\n- \"Preview configuration changes for Rails [version]\"\n- \"Generate the upgrade report\"\n- \"What will change if I upgrade?\"\n\n**Upgrade Cleanup Requests (delegate to the `upgrade-cleanup` plugin):**\n- \"Finish the upgrade\"\n- \"Clean up after my Rails upgrade\"\n- \"Remove the dual-boot setup\"\n- \"Drop the NextRails branches\"\n- \"We're done upgrading to Rails [version]\"\n\n---\n\n## CRITICAL: Sequential Upgrade Strategy\n\n### ⚠️ Version Skipping is NOT Allowed\n\nRails upgrades MUST follow a sequential path. Examples:\n\n**For Rails 5.x to 8.x:**\n```\n5.0.x → 5.1.x → 5.2.x → 6.0.x → 6.1.x → 7.0.x → 7.1.x → 7.2.x → 8.0.x → 8.1.x\n```\n\n**You CANNOT skip versions.** Examples:\n- ❌ 5.2 → 6.1 (skips 6.0)\n- ❌ 6.0 → 7.0 (skips 6.1)\n- ❌ 7.0 → 8.0 (skips 7.1 and 7.2)\n- ✅ 5.2 → 6.0 (correct)\n- ✅ 7.0 → 7.1 (correct)\n- ✅ 7.2 → 8.0 (correct)\n\nIf user requests a multi-hop upgrade (e.g., 5.2 → 8.1):\n1. Explain the sequential requirement\n2. Break it into individual hops\n3. Generate separate reports for each hop\n4. Recommend completing each hop fully before moving to next\n\n---\n\n## Supported Upgrade Paths\n\n### Legacy Rails (2.3 - 4.2)\n\n| From | To | Difficulty | Key Changes | Ruby Required |\n|------|-----|-----------|-------------|---------------|\n| 2.3.x | 3.0.x | Very Hard | XSS protection, routes syntax | 1.8.7 - 1.9.3 |\n| 3.0.x | 3.1.x | Medium | Asset pipeline, jQuery | 1.8.7 - 1.9.3 |\n| 3.1.x | 3.2.x | Easy | Ruby 1.9.3 support | 1.8.7 - 2.0 |\n| 3.2.x | 4.0.x | Hard | Strong Parameters, Turbolinks | 1.9.3+ |\n| 4.0.x | 4.1.x | Medium | Spring, secrets.yml | 1.9.3+ |\n| 4.1.x | 4.2.x | Medium | ActiveJob, Web Console | 1.9.3+ |\n| 4.2.x | 5.0.x | Hard | ActionCable, API mode, ApplicationRecord | 2.2.2+ |\n\n### Modern Rails (5.0 - 8.1)\n\n| From | To | Difficulty | Key Changes | Ruby Required |\n|------|-----|-----------|-------------|---------------|\n| 5.0.x | 5.1.x | Easy | Encrypted secrets, yarn default | 2.2.2+ |\n| 5.1.x | 5.2.x | Medium | Active Storage, credentials | 2.2.2+ |\n| 5.2.x | 6.0.x | Hard | Zeitwerk, Action Mailbox/Text | 2.5.0+ |\n| 6.0.x | 6.1.x | Medium | Horizontal sharding, strict loading | 2.5.0+ |\n| 6.1.x | 7.0.x | Hard | Hotwire/Turbo, Import Maps | 2.7.0+ |\n| 7.0.x | 7.1.x | Medium | Composite keys, async queries | 2.7.0+ |\n| 7.1.x | 7.2.x | Medium | Transaction-aware jobs, DevContainers | 3.1.0+ |\n| 7.2.x | 8.0.x | Very Hard | Propshaft, Solid gems, Kamal | 3.2.0+ |\n| 8.0.x | 8.1.x | Easy | Bundler-audit, max_connections | 3.2.0+ |\n\n---\n\n## Available Resources\n\n### Core Documentation\n- `SKILL.md` - This file (entry point)\n\n### Version-Specific Guides (Load as needed)\n\n**Legacy Rails:**\n- `version-guides/upgrade-3.2-to-4.0.md` - Rails 3.2 → 4.0 (Strong Parameters)\n- `version-guides/upgrade-4.0-to-4.1.md` - Rails 4.0 → 4.1 (Spring, secrets.yml, enums)\n- `version-guides/upgrade-4.1-to-4.2.md` - Rails 4.1 → 4.2 (ActiveJob, Web Console)\n- `version-guides/upgrade-4.2-to-5.0.md` - Rails 4.2 → 5.0 (ApplicationRecord)\n\n**Modern Rails:**\n- `version-guides/upgrade-5.0-to-5.1.md` - Rails 5.0 → 5.1 (Encrypted secrets)\n- `version-guides/upgrade-5.1-to-5.2.md` - Rails 5.1 → 5.2 (Active Storage, Credentials)\n- `version-guides/upgrade-5.2-to-6.0.md` - Rails 5.2 → 6.0 (Zeitwerk)\n- `version-guides/upgrade-6.0-to-6.1.md` - Rails 6.0 → 6.1 (Horizontal sharding)\n- `version-guides/upgrade-6.1-to-7.0.md` - Rails 6.1 → 7.0 (Hotwire/Turbo)\n- `version-guides/upgrade-7.0-to-7.1.md` - Rails 7.0 → 7.1 (Composite keys)\n- `version-guides/upgrade-7.1-to-7.2.md` - Rails 7.1 → 7.2 (Transaction jobs)\n- `version-guides/upgrade-7.2-to-8.0.md` - Rails 7.2 → 8.0 (Propshaft)\n- `version-guides/upgrade-8.0-to-8.1.md` - Rails 8.0 → 8.1 (bundler-audit)\n\n### Workflow Guides (Load when generating deliverables)\n- `workflows/test-suite-verification-workflow.md` - **MANDATORY FIRST STEP** - How to run and verify test suite\n- `workflows/no-test-suite-smoke-workflow.md` - **Load from Step 1 when no runnable RSpec/Minitest suite exists** - Rails boot, routes, migration-status, and build smoke baseline with partial-confidence reporting\n- `workflows/direct-detection-workflow.md` - How to run breaking change detection directly\n- `workflows/upgrade-report-workflow.md` - How to generate upgrade reports\n- `workflows/gem-compatibility-workflow.md` - **Load in Step 4.5** - Per-lockfile gem compatibility check against the target Rails version. Documents both the primary (`next_rails` `bundle_report compatibility`) and the secondary (railsbump.org API) and the rules for when to escalate.\n- `workflows/boot-smoke-test-workflow.md` - **Load in Step 4.6** - Run a Rails-loading command against `Gemfile.next` to catch gem-level runtime incompat that the resolver can't see (gems calling removed Rails internals or `require`-ing removed files).\n- `workflows/ci-sync-workflow.md` - **MANDATORY before opening the upgrade PR** - How to verify CI config matches the upgraded Gemfile\n- `workflows/app-update-preview-workflow.md` - How to generate app:update previews\n- **`upgrade-cleanup` companion plugin** - User-triggered. Removes dual-boot scaffolding and drops `NextRails.next?` / `NextRails.current?` branches. Deprecation triage stays with this skill for the next hop.\n\n### Examples (Load when user needs clarification)\n- `examples/simple-upgrade.md` - Single-hop upgrade example\n- `examples/multi-hop-upgrade.md` - Multi-hop upgrade example\n\n### External Dependencies\n- **dual-boot skill** - Dual-boot setup and management with next_rails (Step 2) (https://github.com/ombulabs/claude-code_dual-boot-skill)\n- **rails-load-defaults skill** - Incremental load_defaults alignment (Step 7, final step) (https://github.com/ombulabs/claude-code_rails-load-defaults-skill)\n\n### Reference Materials\n- `references/deprecation-warnings.md` - Finding and fixing deprecations\n- `references/staying-current.md` - Keeping up with Rails releases\n- `references/breaking-changes-by-version.md` - Quick lookup\n- `references/multi-hop-strategy.md` - Multi-version planning\n- `references/testing-checklist.md` - Comprehensive testing\n- `references/gem-compatibility.md` - Gem update order and the \"no compatible version\" playbook (fork / vendor / replace). Load only when Step 4.5's compatibility check produced blockers.\n- `references/js-compressor-sprockets-mismatch.md` - Keeping terser / closure-compiler working when the target Rails pins Sprockets to the 2.x line. Load only when JS_COMPRESSOR_GEM_MISMATCH fires.\n\n### Detection Pattern Resources\n- `detection-scripts/patterns/rails-*.yml` - Version-specific patterns for direct detection\n\n### Report Templates\n- `templates/upgrade-report-template.md` - Main upgrade report structure\n- `templates/app-update-preview-template.md` - Configuration preview\n\n---\n\n## High-Level Workflow\n\nWhen user requests an upgrade, follow this workflow:\n\n### Step 0: Verify Latest Patch Version (MANDATORY PRE-STEP)\n```\n⚠️  THIS STEP IS REQUIRED BEFORE ANY OTHER WORK\n\n1. Read Gemfile.lock to find exact current Rails version (e.g., 3.2.19)\n2. Compare against latest patch for that series:\n   - EOL series (≤ 7.1): use static table in references/multi-hop-strategy.md\n   - Active series (≥ 7.2): query RubyGems API (see references/multi-hop-strategy.md for commands)\n3. If current version < latest patch:\n   - INFORM user: \"Your app is on Rails X.Y.Z but the latest patch is X.Y.W\"\n   - Guide through Gemfile update and bundle update rails\n   - Run test suite after patch upgrade\n   - Deploy patch upgrade before proceeding\n   - Do NOT proceed to next minor/major until on latest patch\n4. If current version == latest patch:\n   - Proceed to Step 1\n```\n\n**Why patch first:** Patch releases contain security fixes, bug fixes, and additional deprecation warnings. Starting the version hop on the latest patch is safer (the security fixes are already in production) and easier to debug (the new deprecation warnings surface issues that would otherwise show up mid-upgrade).\n\n### Step 1: Run Test Suite (MANDATORY FIRST STEP)\n```\n⚠️  THIS STEP IS REQUIRED BEFORE ANY OTHER WORK\n\n1. Read: workflows/test-suite-verification-workflow.md\n2. Detect test framework (RSpec, Minitest, or both)\n3. Run test suite with: bundle exec rspec OR bundle exec rails test\n4. Capture results: total tests, passing, failing, pending\n5. If no runnable test suite exists:\n   - Load: work","tagline":"Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. 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issue activity unavailable in current metadata"},{"status":"pass","label":"Recent maintenance","detail":"11d since push"},{"status":"pass","label":"License clarity","detail":"MIT"},{"status":"pass","label":"README/SKILL.md completeness","detail":"Metadata includes enough usage and workflow context"},{"status":"warn","label":"Dependency/runtime risk","detail":"command execution surface, network or browser surface"},{"status":"pass","label":"Install availability","detail":"npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade"},{"status":"pass","label":"Install command safety","detail":"standard package or runtime install path"},{"status":"fail","label":"Permission surface","detail":"shell or command execution, filesystem or document access"},{"status":"pass","label":"Repository evidence","detail":"https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade"},{"status":"info","label":"Review status","detail":"AI review data available"},{"status":"info","label":"Agent Proven outcomes","detail":"No agent outcome data yet"},{"status":"warn","label":"Ownership","detail":"No approved owner claim yet"},{"status":"pass","label":"OpenAgentSkill usage","detail":"1 views, 0 install copies"},{"status":"info","label":"Agent outcomes","detail":"No agent outcome data yet"}],"strengths":["AI review approved","Install path is available","Repository evidence is available","Recently maintained repository","Install command has no obvious high-risk pattern","Outcome loop is ready but needs first real agent run"],"warnings":["The SKILL.md excerpt is truncated, but the visible content is comprehensive and well-organized.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Stars/forks activity: 381 stars, 15 forks; 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issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, network or browser surface","Permission surface: shell or command execution, filesystem or document access"],"backward_compatible":{"trust_score_v4":{"version":"trust-score-v4","score":66,"tier":"review","label":"Manual review","summary":"Potentially useful, but at least one trust signal needs human inspection."}}},"trust_score_v4":{"version":"trust-score-v4","score":66,"tier":"review","label":"Manual review","summary":"Potentially useful, but at least one trust signal needs human inspection.","recommendedAction":"Inspect the repository, license, and recent activity before connecting it to agent workflows.","dimensions":[{"id":"github_adoption","label":"GitHub adoption","score":62,"weight":0.13,"status":"info","detail":"381 GitHub stars"},{"id":"repo_activity","label":"Stars/forks activity","score":57,"weight":0.08,"status":"warn","detail":"381 stars, 15 forks; issue activity unavailable in current metadata"},{"id":"maintenance","label":"Recent maintenance","score":100,"weight":0.14,"status":"pass","detail":"11d since push"},{"id":"license","label":"License clarity","score":86,"weight":0.09,"status":"pass","detail":"MIT"},{"id":"documentation","label":"README/SKILL.md completeness","score":86,"weight":0.14,"status":"pass","detail":"Metadata includes enough usage and workflow context"},{"id":"dependency_risk","label":"Dependency/runtime risk","score":56,"weight":0.12,"status":"warn","detail":"command execution surface, network or browser surface"},{"id":"installability","label":"Install availability","score":92,"weight":0.1,"status":"pass","detail":"npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade"},{"id":"install_safety","label":"Install command safety","score":92,"weight":0.1,"status":"pass","detail":"standard package or runtime install path"},{"id":"permission_surface","label":"Permission surface","score":36,"weight":0.07,"status":"fail","detail":"shell or command execution, filesystem or document access"},{"id":"repository","label":"Repository evidence","score":86,"weight":0.04,"status":"pass","detail":"https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade"},{"id":"review_status","label":"Review status","score":66,"weight":0.05,"status":"info","detail":"AI review data available"},{"id":"agent_outcomes","label":"Agent Proven outcomes","score":54,"weight":0.13,"status":"info","detail":"No agent outcome data yet"}],"checks":[{"status":"info","label":"GitHub adoption","detail":"381 GitHub stars"},{"status":"warn","label":"Stars/forks activity","detail":"381 stars, 15 forks; 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issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, network or browser surface"]},"outcomeEvidence":{"total":0,"successes":0,"failures":0,"notRelevant":0,"successRate":null,"installAttempts":0,"riskBlocked":0,"setupRequired":0,"installSuccessRate":null,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"recentSuccessRate":null,"recentFailureRate":null,"uniqueAgents":0,"agentProvenScore":0,"agentProvenLabel":"Needs first agent run","lastOutcomeAt":null,"label":"No agent outcome data yet"},"autoInstall":{"allowed":false,"sandboxRequired":true,"policy":"human_review_before_install","reason":"Human review or sandbox validation is required before automatic installation."},"bestFor":["research","agent-skill"],"doNotUseFor":["Production credentials, payments, or irreversible account changes without explicit human review","Sensitive private data before reviewing repository code, license, and permission surface","Automatic installation in a production workspace"],"knownRisks":["The SKILL.md excerpt is truncated, but the visible content is comprehensive and well-organized.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Stars/forks activity: 381 stars, 15 forks; issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, network or browser surface","Permission surface: shell or command execution, filesystem or document access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.","metrics":{"totalOutcomes":0,"successfulOutcomes":0,"failedOutcomes":0,"installAttempts":0,"installSuccessRate":null,"successRate":null,"recentSuccessRate":null,"recentFailureRate":null,"riskBlocked":0,"setupRequired":0,"notRelevant":0,"avgOutputQuality":null,"avgTimeToUsefulMs":null,"productionOutcomes":0,"humanReviewRequired":0,"uniqueAgents":0,"lastOutcomeAt":null},"signals":[],"penalties":["No real agent outcome evidence yet"]},"outcome_stats":null,"safety":{"score":45,"level":"avoid_auto_install","label":"Avoid automatic install","safety_tier":{"tier":"experimental","label":"Experimental","badge":"EXPERIMENTAL","summary":"Sparse or mixed signals. 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Useful for discovery, but not for autonomous installation.","High-risk permission hints: Shell or command execution","Dependency or permission surface needs review","Permission surface may require sandboxing","The SKILL.md excerpt is truncated, but the visible content is comprehensive and well-organized.","The skill references an 'upgrade-cleanup' plugin in trigger patterns but does not list it in the Dependencies section, which could cause confusion about required setup.","The skill depends on two external skills (dual-boot and rails-load-defaults) that must be installed separately; this is clearly stated but could be a barrier if users are unaware.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Stars/forks activity: 381 stars, 15 forks; issue activity unavailable in current metadata"],"validation_plan":["Inspect repository, README/SKILL.md, license, and recent commits before production use.","Install in an isolated workspace or sandbox with no production secrets available.","Run the smallest representative task and record files touched, commands run, network access, and outputs.","Compare the selected skill against at least one alternative when the eval status is review or failed.","Promote only after the agent reports a successful verification result and unresolved warnings are accepted."],"checks":[{"id":"task_fit","label":"Task fit","status":"pass","score":94,"required_for_auto_install":true,"detail":"Task wording matches this skill metadata.","evidence":["Evaluate rails-upgrade before installing it in an agent workflow","research","GitHub automation workflows; Claude Code teams; builders willing to evaluate younger projects"]},{"id":"install_path","label":"Install path","status":"pass","score":92,"required_for_auto_install":true,"detail":"Install handoff is available.","evidence":["npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade"]},{"id":"install_safety","label":"Install command safety","status":"pass","score":92,"required_for_auto_install":true,"detail":"standard package or runtime install path","evidence":["npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade"]},{"id":"trust_score","label":"Trust score","status":"warn","score":66,"required_for_auto_install":true,"detail":"Potentially useful, but at least one trust signal needs human inspection.","evidence":["Manual review","381 GitHub stars","MIT"]},{"id":"audit_score","label":"Audit score","status":"warn","score":77,"required_for_auto_install":true,"detail":"Needs review","evidence":["Dependency or permission surface needs review"]},{"id":"agent_safety_gate","label":"Agent safety gate","status":"warn","score":45,"required_for_auto_install":true,"detail":"Sparse or mixed signals. Useful for discovery, but not for autonomous installation.","evidence":["Test manually in an isolated workspace and compare against safer alternatives.","High-risk permission hints: Shell or command execution"]},{"id":"readme_skillmd_completeness","label":"README/SKILL.md completeness","status":"pass","score":86,"required_for_auto_install":false,"detail":"Metadata includes enough usage and workflow context","evidence":["Strong README/SKILL.md context"]},{"id":"license_clarity","label":"License clarity","status":"pass","score":86,"required_for_auto_install":true,"detail":"MIT","evidence":["MIT"]},{"id":"recent_maintenance","label":"Recent maintenance","status":"pass","score":100,"required_for_auto_install":false,"detail":"11d since push","evidence":["11d since push"]},{"id":"permission_surface","label":"Permission surface","status":"fail","score":36,"required_for_auto_install":true,"detail":"shell or command execution, filesystem or document access","evidence":["Shell or command execution: high","Network access: medium","Filesystem access: medium"]},{"id":"alternatives","label":"Alternatives available","status":"info","score":55,"required_for_auto_install":false,"detail":"No close alternatives were found in the current shortlist.","evidence":[]}],"endpoints":{"web":"https://www.openagentskill.com/skills/ombulabs-rails-upgrade/evals","api":"/api/agent/evals?slug=ombulabs-rails-upgrade","text":"/api/agent/evals?slug=ombulabs-rails-upgrade&format=text"}},"agent_readable_metadata":{"version":"openagentskill-agent-metadata-v2","skill":{"slug":"ombulabs-rails-upgrade","name":"rails-upgrade","description":"Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook.","category":"research","url":"https://www.openagentskill.com/skills/ombulabs-rails-upgrade","repository":"https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade","github_repo":"ombulabs/claude-code_rails-upgrade-skill"},"suited_tasks":["GitHub automation workflows","Claude Code teams","builders willing to evaluate younger projects","Inspect repository metadata","Compare code changes","Write concise engineering summaries","Inspect source files","Explain architecture"],"suited_agents":["Codex","Claude Code","Cursor","OpenAgentSkill CLI","CLI"],"install":{"command":"npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade","ready":true,"targets":[{"id":"openagentskill-cli","label":"CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add ombulabs-rails-upgrade"},{"id":"codex","label":"Codex","kind":"agent-prompt","value":"Install the \"rails-upgrade\" agent skill from https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade. 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Report success only after the skill is installed and a minimal verification passes."},{"id":"claude-code","label":"Claude Code","kind":"agent-prompt","value":"Add \"rails-upgrade\" as a Claude Code skill from https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"ombulabs-rails-upgrade\",\"task\":\"Install rails-upgrade\",\"agent\":\"claude-code\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."},{"id":"cursor","label":"Cursor","kind":"agent-prompt","value":"Turn \"rails-upgrade\" from https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade into a reusable Cursor project rule or agent instruction. Preserve the core workflow, adapt paths to this repo, and keep the rule scoped to tasks where it is relevant. Skill purpose: Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook. After the install attempt, report the result to https://www.openagentskill.com/api/agent/outcome with POST JSON {\"event_id\":\"install_<unique-id>\",\"skill_slug\":\"ombulabs-rails-upgrade\",\"task\":\"Install rails-upgrade\",\"agent\":\"cursor\",\"outcome\":\"success\",\"install_used\":true}. Replace event_id with a unique value and outcome with success or failed. Report success only after the skill is installed and a minimal verification passes."}],"handoff_url":"https://www.openagentskill.com/api/skills/ombulabs-rails-upgrade/install","manifest_url":"https://www.openagentskill.com/api/registry/manifest/ombulabs-rails-upgrade"},"trust":{"score":66,"label":"Manual review","version":"trust-score-v4","install_policy":"human_review_before_install","evidence":{"stars":"381 GitHub stars","repoActivity":"381 stars, 15 forks","lastPushed":"11d since push","license":"MIT","repository":"https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade","install":"npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade","installSafety":"standard package or runtime install path","permissionSurface":"shell or command execution, filesystem or document access","documentation":"Strong README/SKILL.md context","agentOutcomes":"No agent outcome data yet"},"outcome_evidence":{"total":0,"successes":0,"failures":0,"not_relevant":0,"success_rate":null,"recent_success_rate":null,"recent_failure_rate":null,"install_attempts":0,"install_success_rate":null,"risk_blocked":0,"setup_required":0,"avg_output_quality":null,"production_outcomes":0,"last_outcome_at":null,"label":"No agent outcome data yet"},"auto_install":{"allowed":false,"sandbox_required":true,"reason":"Human review or sandbox validation is required before automatic installation."},"best_for":["research","agent-skill"],"known_risks":["The SKILL.md excerpt is truncated, but the visible content is comprehensive and well-organized.","Quality score needs review","Permission surface needs review: shell or command execution, filesystem or document access","Stars/forks activity: 381 stars, 15 forks; issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, network or browser surface","Permission surface: shell or command execution, filesystem or document access"]},"agent_proven":{"version":"agent-proven-v1","score":0,"tier":"unproven","label":"Needs first agent run","summary":"No agent outcome reports yet. 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issue activity unavailable in current metadata","Dependency/runtime risk: command execution surface, network or browser surface","Permission surface: shell or command execution, filesystem or document access"]},"quality_signals":{"model":"v2","star_score":18.07,"usage_score":0,"review_score":5.25,"metadata_score":3,"freshness_score":15},"platforms":["Claude Code"],"use_cases":[{"slug":"github-automation","title":"GitHub automation","url":"https://www.openagentskill.com/use-cases/github-automation"},{"slug":"coding-agents","title":"Coding agents","url":"https://www.openagentskill.com/use-cases/coding-agents"},{"slug":"research-agents","title":"Research agents","url":"https://www.openagentskill.com/use-cases/research-agents"},{"slug":"testing-qa","title":"Testing and QA","url":"https://www.openagentskill.com/use-cases/testing-qa"}],"stacks":[{"slug":"coding-review-agent","title":"Coding review agent","url":"https://www.openagentskill.com/collections/coding-review-agent"},{"slug":"research-report-agent","title":"Research report agent","url":"https://www.openagentskill.com/collections/research-report-agent"},{"slug":"rag-knowledge-base","title":"RAG knowledge base","url":"https://www.openagentskill.com/collections/rag-knowledge-base"}],"install":"npx skills add ombulabs/claude-code_rails-upgrade-skill --skill rails-upgrade","install_targets":[{"id":"openagentskill-cli","label":"CLI","title":"OpenAgentSkill CLI","kind":"command","value":"npx --yes https://github.com/Leon-Drq/openagentskill/releases/download/cli-v0.3.0/openagentskill-0.3.0.tgz add ombulabs-rails-upgrade","description":"Resolve policy, run the source installer safely, and report a verified install receipt.","copyLabel":"Copy command"},{"id":"codex","label":"Codex","title":"Codex install prompt","kind":"agent-prompt","value":"Install the \"rails-upgrade\" agent skill from https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade. 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Report success only after the skill is installed and a minimal verification passes.","description":"Give Codex a repo-aware install prompt when the skill is not available through a local CLI.","copyLabel":"Copy prompt"},{"id":"claude-code","label":"Claude Code","title":"Claude Code skill prompt","kind":"agent-prompt","value":"Add \"rails-upgrade\" as a Claude Code skill from https://github.com/ombulabs/claude-code_rails-upgrade-skill/tree/main/rails-upgrade. Inspect the skill instructions, place the reusable skill files in the appropriate local skills location for this project, and report the activation steps. Skill purpose: Analyzes Rails applications and generates comprehensive upgrade reports with breaking changes, deprecations, and step-by-step migration guides for Rails 2.3 through 8.1. Use when upgrading Rails applications, planning multi-hop upgrades, or querying version-specific changes. Based on FastRuby.io methodology and \"The Complete Guide to Upgrade Rails\" ebook. 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