Build-an-X for SMS-flow tests - uses Twilio Magic Numbers (`+15005550006` valid recipient, `+15005550001` invalid number, `+15005550002` cannot route, `+15005550003` international restriction, etc.) and Test Credentials for safe assertion-only Twilio interactions; covers segment-counting (GSM-7 vs UCS-2 encoding); rate-limit + opt-out keyword (STOP / HELP / UNSUBSCRIBE) handling; alphanumeric sender vs short-code vs 10DLC differences. Use when authoring tests for any Twilio-backed SMS flow.

Build-an-X for push notification tests (push notifications, web push, FCM / APNs push messages) across Web Push (RFC 8030 / VAPID), Apple Push Notification Service (APNs), and Firebase Cloud Messaging (FCM) - covers subscription handshake, payload encryption, badge / sound / click-action assertions, expired-subscription cleanup, silent-vs-alert, and topic-vs-targeted routing; also carries the in-app notification test workflow (WebSocket / SSE / Firebase-listener delivery, read-unread state, multi-session fan-out, offline-then-reconnect) in references/in-app.md. Use when authoring tests for any push or in-app notification flow.

Configures Jenkins declarative pipeline test stages - `Jenkinsfile` with stages, parallel + per-agent execution, post-actions (always / failure / success), pipeline-junit-plugin for test reports, lockable resources for shared infra. Use for Jenkins-based CI (common in enterprise / regulated environments).

Pure-reference for cross-CI test workflow conventions - when to shard (and how many shards), retry policy (which failures are safe to retry), flake-quarantine integration, artifact retention, per-trigger cadence (per-PR vs per-merge vs nightly), concurrency-cancel patterns, per-job timeouts, secret management, and cross-CI portability. Use as the team's reference for CI test-workflow design across GitHub Actions / GitLab CI / Jenkins / CircleCI; per-CI reporting and per-language reporter / cache-key lookups live in references/, as do the CircleCI test-config patterns (.circleci/config.yml workflows, test splitting, orbs, contexts - references/circleci.md).

Analyze raw prompts, identify intent and gaps, match ECC components (skills/commands/agents/hooks), and output a ready-to-paste optimized prompt. Advisory role only — never executes the task itself. TRIGGER when: user says "optimize prompt", "improve my prompt", "how to write a prompt for", "help me prompt", "rewrite this prompt", or explicitly asks to enhance prompt quality. Also triggers on Chinese equivalents: "优化prompt", "改进prompt", "怎么写prompt", "帮我优化这个指令". DO NOT TRIGGER when: user wants the task executed directly, or says "just do it" / "直接做". DO NOT TRIGGER when user says "优化代码", "优化性能", "optimize performance", "optimize this code" — those are refactoring/performance tasks, not prompt optimization.

Prevent Ethereum hashing bugs in JavaScript and TypeScript. Node's sha3-256 is NIST SHA3, not Ethereum Keccak-256, and silently breaks selectors, signatures, storage slots, and address derivation.

Security patterns for autonomous trading agents with wallet or transaction authority. Covers prompt injection, spend limits, pre-send simulation, circuit breakers, MEV protection, and key handling.

Security checklist for Solidity AMM contracts, liquidity pools, and swap flows. Covers reentrancy, CEI ordering, donation or inflation attacks, oracle manipulation, slippage, admin controls, and integer math.

Operate customer billing workflows such as subscriptions, refunds, churn triage, billing-portal recovery, and plan analysis using connected billing tools like Stripe. Use when the user needs to help a customer, inspect subscription state, or manage revenue-impacting billing operations.

Create platform-native content systems for X, LinkedIn, TikTok, YouTube, newsletters, and repurposed multi-platform campaigns. Use when the user wants social posts, threads, scripts, content calendars, or one source asset adapted cleanly across platforms.

Trace every user-facing button/touchpoint through its full state change sequence to find bugs where functions individually work but cancel each other out, produce wrong final state, or leave the UI in an inconsistent state. Use when: systematic debugging found no bugs but users report broken buttons, or after any major refactor touching shared state stores.

Build an evidence-backed ECC install plan for a specific repo by sorting skills, commands, rules, hooks, and extras into DAILY vs LIBRARY buckets using parallel repo-aware review passes. Use when ECC should be trimmed to what a project actually needs instead of loading the full bundle.

Add x402 payment execution to AI agents — per-task budgets, spending controls, and non-custodial wallets via MCP tools. Use when agents need to pay for APIs, services, or other agents.

Produces a two-tier evaluation — a comprehensive research dossier (15-25 pages, full depth for Q&A) and a concise executive memo (5-7 pages for meetings). Includes team assessment, market analysis, competitive landscape, True Potential Council, Anti-Bias MoE layer, IASV scorecard, and a clear PASS/INVESTIGATE/INVEST signal. Use for due diligence, deal analysis, VC memo generation, startup assessment, or founder evaluation at pre-seed and seed stage.

Safe-to-fail experiment for Complex domain problems where cause-effect is only visible in retrospect. Two-phase: foreground qualify → background probe → sense result. Use when: probe, safe-to-fail, test hypothesis, experiment with hypothesis, Complex domain with hypothesis. NOT for brainstorming (use brainstorm) or known cause-effect (use investigate).

Database migration best practices for schema changes, data migrations, rollbacks, and zero-downtime deployments across PostgreSQL, MySQL, and common ORMs (Prisma, Drizzle, Django, TypeORM, golang-migrate).

Eval-driven process for improving tessl skills that teach best practices. Use when asked to improve, optimize, or iterate on a tessl tile or skill, or when creating a new best-practice skill from scratch. Covers analysing eval results, identifying high-uplift practices, rewriting skills, updating verifiers, and measuring improvement with scenarios.

Access your Slack workspace. Run the check-in workflow to surface new messages, active threads, and channel activity for the daily note. Can also send messages and replies.