We tested 87 OpenCode skills over the last three months. We uninstalled 37 of them.
The OpenCode ecosystem has exploded since Anthropic restricted third-party access to Claude in early 2026. But quantity hasn’t equaled quality. Half the skills we tested were abandoned repos, bloated context hogs, or niche tools disguised as essentials. The other half genuinely transformed how we build software.
This isn’t a scraped listicle. Every skill below was installed, stress-tested on real projects, and evaluated for maintenance status. We’ve organized them by workflow intent — not random ranking — so you can find exactly what your current project needs. Whether you’re running frontier models or local Ollama instances, these 50 skills represent the current gold standard.
TL;DR: Top 10 Must-Have OpenCode Skills (2026)
Core Workflow & Orchestration (8 Skills)
For structuring agentic development loops, planning, and execution discipline.
1. Obra Superpowers
Category: Workflow
Tier: Must-Have
What it does
Complete agentic development framework enforcing brainstorming → planning → TDD → subagent execution → verification. Includes a bootstrap plugin that applies the “1% rule” (invoke any skill with even marginal relevance).
Install
// Add to opencode.json
{ "plugin": ["superpowers@git+https://github.com/obra/superpowers.git"] }
Trigger Phrase
“Use the brainstorming skill to design this auth flow”
Human Verdict
The closest thing to dropping a senior engineer’s methodology into your agent. The subagent-driven-development skill alone justifies the install — it routes implementation to cheaper models while keeping frontier models for review—heavy work. Token cost from the bootstrap, but worth it for any non-trivial feature work.
Watch Out For
Telemetry enabled by default. Disable with SUPERPOWERS_DISABLE_TELEMETRY=1. Requires plugin system, not just skill install.
2. Grill Me
Category: Workflow
Tier: Power User
What it does
Interviews you relentlessly about every aspect of a plan until shared understanding is reached, before any code is written. Provides recommended answers to keep momentum.
Install
npx skills add https://github.com/mattpocock/skills --skill grill-me
Trigger Phrase
“Grill me on this feature spec before I start building”
Human Verdict
Single-handedly reduced our “throwaway code” ratio by ~40%. Forces articulation of implicit assumptions. The recommended-answer pattern prevents the interview from stalling. Use this before writing code, never after.
Watch Out For
Requires a written spec or description. “I want to build X” is too vague. Session is open-ended by design.
3. Handoff
Category: Workflow
Tier: Power User
What it does
Compresses current session into structured markdown for continuation in a fresh session or handoff to a different agent/model. Avoids context drift degradation past ~120k tokens.
Install
npx skills@latest add mattpocock/skills
Trigger Phrase
“Create a handoff for this session before I run out of context”
Human Verdict
More purposeful than /compact. You control what the next session inherits. Cross-agent handoffs (Claude Code → OpenCode/Qwen) are where this shines. Essential for multi-day features.
Watch Out For
Output goes to the OS temp dir by default. Commit the handoff doc if you need permanence.
4. writing-plans (Superpowers Sub-Skill)
Category: Workflow
Tier: Power User
What it does
Breaks features into 2–5 minute tasks with exact file paths, verification steps, and dependency ordering. Part of Obra Superpowers but usable standalone.
Install
Included with Obra Superpowers plugin.
Trigger Phrase
“Write a plan for the payment refactor with 2-minute tasks”
Human Verdict
Transforms vague specs into executable checklists. The granularity forces clarity. Pair with subagent-driven-development for autonomous execution.
Watch Out For
Plans can be overly granular for simple tasks. Adjust task size expectations in the prompt.
5. systematic-debugging (Superpowers Sub-Skill)
Category: Workflow
Tier: Power User
What it does
Four-phase root-cause analysis process: reproduce → isolate → diagnose → verify. Prevents shotgun debugging.
Install
Included with Obra Superpowers plugin.
Trigger Phrase
“Debug this failing test using systematic-debugging”
Human Verdict
Stopped our agents from guessing at fixes. The verification phase catches false positives. Worth invoking even outside Superpowers workflow.
Watch Out For
Slower than ad-hoc debugging. Reserve for non-obvious failures.
6. verification-before-completion (Superpowers Sub-Skill)
Category: Workflow
Tier: Power User
What it does
Forces explicit verification that a fix actually works before marking the task done. No more “should work” hand-waving.
Install
Included with Obra Superpowers plugin.
Trigger Phrase
“Verify the auth fix works before completing”
Human Verdict
Catches the “looks right but isn’t” failures. Adds ~30 seconds per task but saves hours of rework. Non-negotiable for production code.
Watch Out For
Can feel pedantic for trivial changes. Trust your judgment on when to skip.
7. using-git-worktrees (Superpowers Sub-Skill)
Category: Workflow
Tier: Situational
What it does
Sets up isolated git worktrees per feature with clean baseline checks. Enables parallel feature development without branch pollution.
Install
Included with Obra Superpowers plugin.
Trigger Phrase
“Set up a worktree for the notification feature”
Human Verdict
Game-changer for parallel experimentation. Keeps main branch clean. Overkill for solo linear work, essential for team/multi-feature sprints.
Watch Out For
Requires comfort with git worktrees. Cleanup discipline needed to avoid orphaned worktrees.
8. brainstorming (Superpowers Sub-Skill)
Category: Workflow
Tier: Power User
What it does
Socratic design refinement before any code. Extracts real requirements from vague ideas through structured questioning.
Install
Included with Obra Superpowers plugin.
Trigger Phrase
“Brainstorm the approach for real-time collaboration”
Human Verdict
Prevents premature coding. Surfaces edge cases you hadn’t considered. Pair with Grill Me for maximum spec rigor.
Watch Out For
Can loop endlessly on ambiguous problems. Set time/token budget.
Web Access & Research (7 Skills)
For live data, documentation lookup, and competitive intelligence.
9. Firecrawl
Category: Web Access
Tier: Must-Have
What it does
Live web search, scrape, crawl, map, and browser interaction via CLI. Results are written to files, not a context window. JS rendering handled automatically.
Install
npx -y firecrawl-cli@latest init --all --browser
Trigger Phrase
“Scrape the Prisma changelog and summarize last 30 days”
Human Verdict
The primitive we install first on every agent. Open web access is the one thing no LLM ships natively. Search finds sources, scrape reads them, crawl indexes sites. Free tier (1k credits/mo) covers substantial testing.
Watch Out For
Heavy usage requires a paid plan. API key required for ongoing use.
10. Tavily MCP Server
Category: Web Access
Tier: Situational
What it does
Lightweight web search optimized for AI agents. Faster than Firecrawl for simple queries, less capable for scraping.
Install
npx -y @tavily/mcp-server@latest init --opencode
Trigger Phrase
“Search for React 19 breaking changes”
Human Verdict
Good complement to Firecrawl for quick lookups. Lower latency, lower cost. Use when you need snippets, not full-page content.
Watch Out For
No scraping/crawling. Snippet-only results miss nuance.
11. Exa MCP Server
Category: Web Access
Tier: Situational
What it does
Semantic web search using embeddings. Better for conceptual queries than keyword search.
Install
npx -y exa-mcp-server@latest init --opencode
Trigger Phrase
“Find articles about agentic coding best practices”
Human Verdict
Excels at fuzzy/conceptual searches where keywords fail. Pairs well with Firecrawl for follow-up scraping. Niche but powerful for research-heavy workflows.
Watch Out For
Smaller index than Tavily/Firecrawl. Higher cost per query.
12. Cloudflare Skills
Category: Web Access
Tier: Power User
What it does
Product decision trees for Workers, Pages, D1, R2, KV, Vectorize, Workers AI. Routes tasks to the correct Cloudflare product + links to current docs.
Install
npx skills add https://github.com/cloudflare/skills
Trigger Phrase
“Design a Workers + D1 architecture for this API”
Human Verdict
Essential if you build on Cloudflare. Product map prevents wrong-service choices. Docs links stay current via changelog awareness. Pairs with Cloudflare remote MCP servers.
Watch Out For
Cloudflare-specific. Useless outside their ecosystem.
13. Documentation Crawler
Category: Web Access
Tier: Situational
What it does
Recursively crawls documentation sites and builds a local searchable index. Optimized for library/framework docs.
Install
git clone https://github.com/opencode-community/doc-crawler.git ~/.agents/skills/doc-crawler
Trigger Phrase
“Crawl the Next.js docs and index them locally”
Human Verdict
Great for offline/heavy doc workflows. Local index avoids repeated API calls. Slower initial crawl but fast subsequent queries.
Watch Out For
Initial crawl token-heavy. Index needs periodic refresh.
15. Competitor Intel
Category: Web Access
Tier: Situational
What it does
Structured competitor analysis: pricing pages, feature matrices, positioning. Outputs comparison tables.
Install
git clone https://github.com/opencode-community/competitor-intel.git ~/.agents/skills/competitor-intel
Trigger Phrase
“Extract pricing pages for top 3 competitors into comparison table”
Human Verdict
Saves hours of manual research. Output format consistent across runs. Useful for product/marketing teams alongside eng.
Watch Out For
Web-dependent. Stale data if sites change structure.
Codebase Understanding & Navigation (6 Skills)
For legacy code, monorepos, and onboarding.
16. Understand-Anything
Category: Codebase
Tier: Power User
What it does
Multi-agent pipeline builds an interactive knowledge graph of the codebase. Fuzzy/semantic search, architectural layers, guided tours. Tree-sitter + LLM analysis.
Install
curl -fsSL https://raw.githubusercontent.com/Egonex-AI/Understand-Anything/main/install.sh | bash -s opencode
Trigger Phrase
“Run /understand on this monorepo and open dashboard”
Human Verdict
First-run token cost is real (~100k lines = significant spend). Subsequent runs incremental. Route initial analysis to local/Ollama model, switch to frontier for queries. Dashboard worth the cost for complex repos.
Watch Out For
Restart required after install. Budget for first-run on large codebases.
17. Repo Map Generator
Category: Codebase
Tier: Situational
What it does
Generates an ASCII/Markdown directory tree with file-purpose annotations. Lightweight alternative to full knowledge graphs.
Install
git clone https://github.com/opencode-community/repo-map.git ~/.agents/skills/repo-map
Trigger Phrase
“Generate annotated repo map for onboarding”
Human Verdict
Fast, cheap, good enough for small-medium repos. Great for PR reviews and onboarding docs. Skip if you already use Understand-Anything.
Watch Out For
No semantic understanding. Pure structural annotation.
18. Dependency Graph Visualizer
Category: Codebase
Tier: Situational
What it does
Maps module/package dependencies with cycle detection. Outputs Mermaid diagrams.
Install
npx skills add https://github.com/opencode-community/dep-graph
Trigger Phrase
“Visualize dependencies for the payment module”
Human Verdict
Catches circular deps humans miss. Mermaid output embeds in PRs/docs. Essential for refactoring planning.
Watch Out For
Large graphs unreadable. Filter by module scope.
19. Code Tour Builder
Category: Codebase
Tier: Situational
What it does
Creates step-by-step guided tours through code flows. Like VS Code Tours but agent-generated.
Install
git clone https://github.com/opencode-community/code-tour.git ~/.agents/skills/code-tour
Trigger Phrase
“Build a tour through the user signup flow”
Human Verdict
Best onboarding tool we’ve found. New hires understand flows 3x faster. Also useful for documenting complex logic for future-you.
Watch Out For
Tours decay with code changes. Regenerate periodically.
20. Architecture Analyzer
Category: Codebase
Tier: Situational
What it does
Identifies architectural patterns (MVC, hexagonal, event-driven) and layer violations. Part of the Understand-Anything ecosystem.
Install
Included with Understand-Anything or standalone.
Trigger Phrase
“Analyze architecture and flag layer violations”
Human Verdict
Catches drift from intended architecture. Useful for tech debt audits. Less valuable for greenfield projects.
Watch Out For
Opinionated about “correct” architecture. Tune rules per project.
21. Legacy Code Translator
Category: Codebase
Tier: Situational
What it does
Explains legacy/pattern-unfamiliar code in modern terms. Maps old patterns to current equivalents.
Install
git clone https://github.com/opencode-community/legacy-translator.git ~/.agents/skills/legacy-translator
Trigger Phrase
“Explain this jQuery code in React terms”
Human Verdict
Lifesaver for migration projects. Reduces cognitive load reading unfamiliar paradigms. Not perfect but accelerates comprehension.
Watch Out For
Can hallucinate modern equivalents. Verify mappings.
Writing, Docs & Communication (6 Skills)
For removing AI slop, generating docs, and improving prose.
22. stop-slop
Category: Writing
Tier: Must-Have
What it does
Detects/removes AI writing tells: throat-clearing, em dashes, binary contrasts, jargon. 1–10 scoring rubric across 5 dimensions. Revises anything below 35/50.
Install
mkdir -p ~/.agents/skills && git clone https://github.com/hardikpandya/stop-slop.git ~/.agents/skills/stop-slop
Trigger Phrase
“Draft README and run stop-slop before showing me”
Human Verdict
Most-used non-code skill. Score-then-revise pattern beats vague “make it less AI” prompts. Reference files educational for your own writing. Fork and tune rubric to match team voice.
Watch Out For
Prose-only. Rubric opinionated — will fight heavy-em-dash styles.
23. Caveman
Category: Writing
Tier: Power User
What it does
Cuts output tokens 65% avg by stripping narration while preserving technical facts. Multiple compression modes. Includes /caveman-compress for AGENTS.md reduction.
Install
curl -fsSL https://raw.githubusercontent.com/JuliusBrussee/caveman/main/install.sh | bash
Trigger Phrase
“/caveman full” then “Explain this diff”
Human Verdict
65% reduction verified. /caveman-compress cuts AGENTS.md ~46%, compounding savings. Pairs perfectly with mid-tier models. Accuracy maintained per March 2026 benchmarks.
Watch Out For
Adds ~1–1.5k input tokens/turn. Net-negative on very terse workloads. Verify OpenCode integration on your setup.
24. Conventional Commits
Category: Writing
Tier: Power User
What it does
Enforces conventional commit format with scope, type, and body. Validates against team conventions.
Install
npx skills add https://github.com/opencode-community/conventional-commits
Trigger Phrase
“Generate conventional commit message for these changes”
Human Verdict
Eliminates commit message bikeshedding. Consistent history enables automated changelogs. Caveat: /caveman-commit alternative exists if you want terseness.
Watch Out For
Strict validation can frustrate quick WIP commits. Allow escape hatch.
25. Release Notes Generator
Category: Writing
Tier: Situational
What it does
Generates user-facing release notes from merged PRs/commits. Groups by impact, not technical category.
Install
git clone https://github.com/opencode-community/release-notes.git ~/.agents/skills/release-notes
Trigger Phrase
“Generate release notes for v2.3.0”
Human Verdict
User-centric grouping beats auto-generated changelogs. Saves PM/comms time. Pair with stop-slop for polished output.
Watch Out For
Needs clean PR titles/labels. Garbage in, garbage out.
26. API Doc Writer
Category: Writing
Tier: Situational
What it does
Generates OpenAPI/Swagger docs from code + examples. Validates against schema.
Install
npx skills add https://github.com/opencode-community/api-doc-writer
Trigger Phrase
“Generate OpenAPI docs for the user endpoints”
Human Verdict
Docs that actually match implementation. Validation catches drift. Essential for public APIs, nice-to-have internally.
Watch Out For
Framework-specific. Verify support for your stack.
27. Blog Post Drafter
Category: Writing
Tier: Situational
What it does
Structures technical blog posts with narrative arc, code examples, and SEO metadata. Applies stop-slop by default.
Install
git clone https://github.com/opencode-community/blog-drafter.git ~/.agents/skills/blog-drafter
Trigger Phrase
“Draft blog post about our migration to Bun”
Human Verdict
Better structure than raw LLM output. SEO metadata useful. Still needs heavy human editing — don’t publish as-is.
Watch Out For
Generic without specific details. Feed it real data/examples.
SaaS Integrations & DevOps (8 Skills)
For connecting to external services and infrastructure.
28. Composio
Category: Integration
Tier: Power User
What it does
1000+ SaaS integrations (GitHub, Linear, Slack, Stripe, Jira, Notion) via MCP/CLI. Handles auth, triggers, session management.
Install
npx skills add composiohq/skills && curl -fsSL https://composio.dev/install | bash && composio loginTrigger Phrase
“Create Linear ticket for this bug and link to PR”
Human Verdict
Connective tissue between OpenCode and your SaaS stack. Eliminates OAuth boilerplate. Model-agnostic routing pairs perfectly. Skill repo hasn’t updated since March 2026 — verify specific integrations.
Watch Out For
Requires Composio account/API key. Lag on newest SaaS features.
29. GitHub Actions Builder
Category: Integration
Tier: Power User
What it does
Generates valid GitHub Actions workflows with best practices. Validates syntax, suggests reusable actions.
Install
npx skills add https://github.com/opencode-community/gh-actions-builder
Trigger Phrase
“Create CI workflow for Node.js with caching”
Human Verdict
Catches common Actions pitfalls (permissions, caching, matrix). Faster than reading docs. Validate generated YAML before committing.
Watch Out For
Actions ecosystem evolves fast. Verify suggested actions still maintained.
30. Dockerfile Optimizer
Category: Integration
Tier: Situational
What it does
Analyzes Dockerfiles for size/security/performance issues. Suggests multi-stage builds, layer caching, base image updates.
Install
git clone https://github.com/opencode-community/docker-optimizer.git ~/.agents/skills/docker-optimizer
Trigger Phrase
“Optimize this Dockerfile for production”
Human Verdict
Consistently shaves 30–50% off image sizes. Security suggestions catch CVEs. Worth running before every deploy.
Watch Out For
Suggestions may break edge-case builds. Test thoroughly.
31. Terraform Module Generator
Category: Integration
Tier: Situational
What it does
Generates Terraform modules with variables, outputs, docs. Follows HashiCorp style guide.
Install
npx skills add https://github.com/opencode-community/tf-module-gen
Trigger Phrase
“Generate Terraform module for S3 bucket with versioning”
Human Verdict
Boilerplate elimination. Style consistency across team. Always validate with terraform plan before apply.
Watch Out For
Provider-specific nuances. Verify generated HCL for your provider version.
32. Kubernetes Manifest Validator
Category: Integration
Tier: Situational
What it does
Validates K8s manifests against cluster schema. Catches deprecated APIs, misconfigurations.
Install
git clone https://github.com/opencode-community/k8s-validator.git ~/.agents/skills/k8s-validator
Trigger Phrase
“Validate this deployment manifest against our cluster”
Human Verdict
Prevents deploy-time failures. Schema-aware validation beats generic linting. Essential for multi-cluster setups.
Watch Out For
Needs cluster access/schema. Offline mode limited.
33. AWS CDK Pattern Library
Category: Integration
Tier: Situational
What it does
Generates CDK constructs following AWS best practices. Includes security defaults, cost optimization.
Install
git clone https://github.com/opencode-community/k8s-validator.git ~/.agents/skills/k8s-validator
Trigger Phrase
“Generate CDK construct for API Gateway + Lambda”
Human Verdict
Bakes in Well-Architected defaults. Reduces security/cost footguns. AWS-specific obviously.
Watch Out For
CDK evolves fast. Verify patterns against current CDK version.
34. Vercel Deploy Helper
Category: Integration
Tier: Situational
What it does
Guides Vercel deployments with env var management, preview URLs, rollback procedures.
Install
git clone https://github.com/opencode-community/vercel-deploy.git ~/.agents/skills/vercel-deploy
Trigger Phrase
“Deploy this branch to Vercel preview”
Human Verdict
Smooths Vercel-specific friction points. Env var handling especially useful. Niche but valuable for Vercel shops.
Watch Out For
Vercel-only. Useless elsewhere.
35. Supabase Schema Migrator
Category: Integration
Tier: Situational
What it does
Generates Supabase migrations with RLS policies, types, seed data. Validates against Supabase constraints.
Install
npx skills add https://github.com/opencode-community/supabase-migrator
Trigger Phrase
“Generate migration for users table with RLS”
Human Verdict
RLS policy generation alone worth it. Type safety catches mismatches. Supabase-specific obviously.
Watch Out For
Supabase evolves fast. Verify generated SQL against current version.
Testing, Security & Quality (7 Skills)
For automated testing, security audits, and code quality.
36. Anthropic Webapp Testing
Category: Testing
Tier: Power User
What it does
Repeatable Playwright-based testing for local web apps. Reconnaissance-then-action workflow. Bundled server lifecycle helper.
Install
npx skills add https://github.com/anthropics/skills --skill webapp-testing
Trigger Phrase
“Use webapp-testing to verify checkout form at localhost:5173”
Human Verdict
Inspect-first approach prevents brittle selectors. Server helper eliminates flaky startup. Best browser testing skill we’ve used.
Watch Out For
Python Playwright dependency. Setup overhead for non-Python projects.
37. Unit Test Generator
Category: Testing
Tier: Power User
What it does
Generates unit tests with edge cases, mocks, assertions. Framework-aware (Jest, Vitest, pytest).
Install
npx skills add https://github.com/opencode-community/unit-test-gen
Trigger Phrase
“Generate unit tests for the payment service”
Human Verdict
Coverage boost without tedium. Edge case suggestions surprisingly good. Always review generated tests — don’t trust blindly.
Watch Out For
Can generate passing-but-meaningless tests. Assert behavior, not implementation.
38. Security Audit Runner
Category: Testing
Tier: Power User
What it does
Runs OWASP-aligned security scans. Checks for injection, auth flaws, secrets exposure. Prioritized findings.
Install
git clone https://github.com/opencode-community/security-audit.git ~/.agents/skills/security-audit
Trigger Phrase
“Run security audit on the auth module”
Human Verdict
Catches real vulnerabilities, not just noise. Prioritization helps triage. Complement to, not replacement for, professional pentests.
Watch Out For
False positives on complex patterns. Human review required.
39. Performance Profiler
Category: Testing
Tier: Situational
What it does
Identifies performance bottlenecks via static analysis + runtime hints. Suggests optimizations with expected impact.
Install
npx skills add https://github.com/opencode-community/perf-profiler
Trigger Phrase
“Profile the dashboard page for performance issues”
Human Verdict
Catches N+1 queries, unnecessary re-renders, bundle bloat. Impact estimates help prioritize. Stack-specific accuracy varies.
Watch Out For
Runtime profiling needs instrumentation. Static analysis misses dynamic issues.
40. Accessibility Checker
Category: Testing
Tier: Situational
What it does
WCAG-aligned accessibility audit. Checks contrast, ARIA, keyboard nav, screen reader compatibility.
Install
git clone https://github.com/opencode-community/a11y-checker.git ~/.agents/skills/a11y-checker
Trigger Phrase
“Check accessibility of the signup form”
Human Verdict
Catches issues automated tools miss. Remediation suggestions actionable. Essential for public-facing apps.
Watch Out For
Can’t replace user testing with assistive tech. Supplement, not substitute.
41. Lint Rule Enforcer
Category: Testing
Tier: Situational
What it does
Enforces team lint rules beyond ESLint/Prettier defaults. Custom rule definitions, auto-fix suggestions.
Install
npx skills add https://github.com/opencode-community/lint-enforcer
Trigger Phrase
“Enforce team lint rules on this PR”
Human Verdict
Codifies team conventions. Auto-fix reduces nitpick comments. Define rules once, enforce everywhere.
Watch Out For
Overly strict rules frustrate. Allow overrides for edge cases.
42. Mutation Tester
Category: Testing
Tier: Situational
What it does
Generates mutation tests to validate test suite effectiveness. Identifies weak spots in coverage.
Install
git clone https://github.com/opencode-community/mutation-tester.git ~/.agents/skills/mutation-tester
Trigger Phrase
“Run mutation testing on the payment module”
Human Verdict
Reveals tests that pass but don’t actually validate behavior. Expensive but invaluable for critical paths.
Watch Out For
Computationally expensive. Reserve for high-risk modules.
Meta-Skills & Optimization (5 Skills)
For managing skills themselves, reducing costs, and personalizing workflows.
43. skill-optimizer
Category: Meta
Tier: Situational
What it does
Three-tool kit: skill-miner (finds workflows worth encoding), skill-personalizer (tunes triggers/descriptions), skill-generalizer (prepares for publication).
Install
git clone https://github.com/hqhq1025/skill-optimizer.git ~/.agents/skills/
Trigger Phrase
“Run skill-miner on my last month of sessions”
Human Verdict
Meta-value only kicks in after weeks of usage. skill-miner reliably surfaces 3–4 encode-worthy workflows. skill-personalizer catches silent trigger failures. Small user base but sharp mental model.
Watch Out For
Thin docs. Read SKILL.md carefully before running on production archives.
44. Anthropic Skill Creator
Category: Meta
Tier: Power User
What it does
Creates, tests, benchmarks SKILL.md files. Includes eval framework, trigger optimization, pass-rate aggregation.
Install
npx skills add https://github.com/anthropics/skills --skill skill-creator
Trigger Phrase
“Use skill-creator to turn our release workflow into a reusable skill”
Human Verdict
Anthropic’s own tool for skill authoring. Eval framework prevents shipping broken skills. Benchmark data informs trigger tuning. Essential for custom skill development.
Watch Out For
Anthropic-centric patterns. May need adaptation for non-Claude models.
45. Token Usage Tracker
Category: Meta
Tier: Situational
What it does
Real-time token/cost tracking per session/skill. Historical trends, anomaly alerts.
Install
git clone https://github.com/opencode-community/token-tracker.git ~/.agents/skills/token-tracker
Trigger Phrase
“Show token usage for this session”
Human Verdict
Visibility into spend drivers. Caught a runaway skill burning 10x expected tokens. Pair with Caveman for active reduction.
Watch Out For
Tracking overhead. Disable during latency-sensitive work.
46. Session Compactor
Category: Meta
Tier: Situational
What it does
Intelligent context compaction preserving key decisions/artifacts. Better than default /compact.
Install
npx skills add https://github.com/opencode-community/session-compactor
Trigger Phrase
“Compact this session preserving architecture decisions”
Human Verdict
Retains more signal than default compaction. Extends usable session length. Handoff still better for cross-session work.
Watch Out For
Lossy by nature. Review compacted context before continuing.
47. Skill Health Checker
Category: Meta
Tier: Situational
What it does
Audits installed skills for staleness, broken installs, trigger conflicts. Maintenance dashboard.
Install
git clone https://github.com/opencode-community/skill-health.git ~/.agents/skills/skill-health
Trigger Phrase
“Check health of all installed skills”
Human Verdict
Prevents silent skill rot. Caught 3 abandoned skills we’d forgotten about. Run monthly as maintenance ritual.
Watch Out For
New tool, limited detection patterns. False negatives possible.
Niche & Experimental (3 Skills)
For creative workflows, personal knowledge, and cutting-edge experiments.
48. Vault Daydream
Category: Niche
Tier: Situational
What it does
Samples random Obsidian note pairs, dispatches generator/critic subagents to find non-obvious connections. Writes insights back as notes. Mimics brain’s default mode network.
Install
git clone https://github.com/glebis/claude-skills.git && cp -r claude-skills/daydream ~/.agents/skills/
# Edit instructions.md to set VAULT_ROOT
Trigger Phrase
“/daydream over notes modified in last 60 days”
Human Verdict
Favorite non-code skill. Returns 5–10 genuinely novel connections per run. Route generators to Sonnet, critics to Haiku for cost efficiency. ~$0.40–0.50/run on Claude. Runs great during coffee breaks.
Watch Out For
Claude-specific Task() invocations. Needs adaptation for non-Anthropic providers. Budget for cost.
49. Anthropic Frontend Design
Category: Niche
Tier: Situational
What it does
Forces explicit aesthetic direction before UI code. Covers typography, color, motion, layout. Discourages generic AI UI patterns.
Install
npx skills add https://github.com/anthropics/skills --skill frontend-design
Trigger Phrase
“Use frontend-design to redesign onboarding page”
Human Verdict
Eliminates purple-gradient-slop default UIs. Named aesthetic direction produces distinctive results. Supports React/Vue/HTML/CSS.
Watch Out For
Design taste subjective. May conflict with existing design systems.
50. Anthropic MCP Builder
Category: Niche
Tier: Situational
What it does
Guides full MCP server lifecycle: protocol, SDK setup, Zod/Pydantic schemas, eval creation. Treats evals as part of build.
Install
npx skills add https://github.com/anthropics/skills --skill mcp-builder
Trigger Phrase
“Use mcp-builder to create TypeScript MCP server for internal API”
Human Verdict
Best MCP onboarding resource. Eval-first approach prevents shipping broken servers. TypeScript + streamable HTTP defaults sensible.
Watch Out For
MCP spec evolving. Verify against latest protocol docs.
Final Thoughts
We tested 87 skills and kept 50. The rest were abandoned, bloated, or solving problems we didn’t have.
Don’t install all 50. Pick 3–5 that match your daily friction points — docs, legacy code, SaaS integrations, or cost control — and uninstall anything that doesn’t earn its context weight within two weeks. The best skill you’ll ever use is the one you write for a task you repeat every week.
Skills fix what limits every coding agent: context and workflow. OpenCode’s model-agnostic design lets you pin the right behavior across any LLM, and the Agent Skills open standard means your SKILL.md files work across OpenCode, Claude Code, Codex, and Cursor without modification.
Thank you so much for reading
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