vanara-agents
Organization29 free, verified agents, skills & packs for Claude Code - install with 'npx vanara install <name>'. Apache-2.0. From the Vanara catalog (206 items).
Categories
Indexed Skills (15)
api-pagination
Implement correct, fast API pagination — cursor vs offset trade-offs, opaque cursor encoding, stable sort keys, page-size limits, total-count costs, and consumer-side iteration that survives inserts, deletes, and retries. With runnable cursor checks.
caching-strategies
Deep reference for caching — what to cache, cache-aside vs read/write-through/write-behind, TTLs with jitter, eviction (LRU/LFU/FIFO), invalidation, and surviving stampedes (thundering herd / dogpile). Worked examples and a runnable jitter check.
database-migrations
How to write safe, reversible, zero-downtime database schema migrations — additive-first changes, the expand/migrate/contract pattern, batched backfills, concurrent index builds, safe NOT NULL, rollbacks, and the locking pitfalls that cause outages. A deep reference with runnable checks.
error-handling-patterns
How to handle errors explicitly and consistently across an app — validate at boundaries, classify operational vs programmer errors, add context while propagating, retry transient failures with backoff, and never swallow. Covers JS/Python/Go/Rust patterns with runnable checks.
git-collaboration-workflows
Run git collaboration that scales — trunk-based vs git-flow decided by deploy cadence, branch protection and required checks, PR sizing and review etiquette, monorepo vs polyrepo trade-offs, release branches and hotfixes, and history hygiene with disciplined merges.
owasp-top10
A deep prevention reference for the OWASP Top 10 web risks — broken access control, injection, crypto failures, insecure design, SSRF and more — with vulnerable-vs-fixed code, edge cases, and a runnable naive-vulnerability scanner.
prompt-engineering
A deep, practical guide to engineering reliable LLM prompts — role/context, instructions, few-shot, structured output, chain-of-thought, delimiting untrusted data, injection defense, and evaluation. Includes worked prompts and a runnable output validator.
readme-writing
How to write a README that gets a project understood and running fast — lead with what/why, a 60-second quickstart, then usage, config, contributing, and license. Covers required sections, show-don't-tell examples, scannability, badges, and failure modes. Use when writing or auditing a project README.
refactoring-patterns
Improve code structure without changing behavior — the discipline of small, named, test-backed moves. Extract function/variable, inline, rename, replace conditional with polymorphism, introduce parameter object, guard clauses. Recognize smells, refactor safely, avoid big-bang rewrites.
rest-api-design
Conventions for designing clean, consistent, evolvable REST APIs — resource modeling, HTTP semantics, status codes, pagination, filtering, error envelopes, versioning, idempotency, and security. A deep reference with worked examples and runnable checks.
secure-auth
Implement authentication securely — authentication vs authorization, password hashing (argon2id/bcrypt), sessions vs JWT (storage, expiry, refresh, revocation), MFA, OAuth2/OIDC flows, and defenses against credential stuffing, session fixation, and CSRF. Worked examples + a runnable password-policy check.
sql-index-tuning
Diagnose slow SQL queries and add the right indexes without over-indexing — B-tree mechanics, composite ordering (equality-before-range), the leftmost-prefix rule, covering/index-only scans, reading EXPLAIN ANALYZE, selectivity, and write-amplification costs. Worked SQL examples and a runnable index-suggester.
test-plan-design
How to design a test plan — scope and risk-based prioritization, the test pyramid, case-design techniques (equivalence partitioning, boundary values, decision tables), entry/exit criteria, coverage and requirement traceability, test data and environments. Deep reference with a runnable coverage-gap check.
vanara-orchestrate
Run a goal end-to-end as a gated pipeline of specialist agents — reproduce → test → patch → review → commit — where nothing advances past a gate until its exit condition holds and the required agent has signed off. Use when a task needs several agents in sequence with checkpoints, not a single one-shot answer.
vanara-route
Given a task, find the best-fit installed Vanara agent and run it. Reads the installed agent roster, scores each by how well its stated purpose matches the task, delegates to the strongest match, and — when nothing fits — records the gap so you can request the missing agent. Use when you are not sure which specialist should handle a job, or you want the toolkit to pick for you.
Bio shown is the top-scored skill's repo description as a fallback — real GitHub bios land in a future update.