phuryn/product-engineering

claude-agents

'Ask Claude', 'have Claude build or review this': drive Claude Code headless (claude -p) from another agent as a peer, builder or fresh reviewer.

原文の言語: 英語

grok-agents

Before 'ship it', a deploy or release, for 'an independent review', and after each fix until a round is clean: a fresh reviewer that never saw the build.

原文の言語: 英語

ship-check

Is this safe to ship? Documents the app, wires the agent's context, runs the correctness, security and performance reviews and an independent unsteered pass, maps test coverage, and compiles one reviewer-ready shipping packet. Started by name only:…

原文の言語: 英語

app-lifecycle

Planning a SaaS stage, 'what's next', 'where are we', calling a stage done: the detailed path from an idea to production, each stage with its done-when.

原文の言語: 英語

product-analytics

Adding analytics, session recordings, heatmaps, 'what did users do', Clarity or PostHog: behaviour analytics without analytics cookies, read back by the agent, and what changes when a cookie comes in.

原文の言語: 英語

release-gate

Before 'push it', 'ship it', a deploy, release or go-live, or calling a stage done: the gate, the owner's preview, go/no-go, promote, prove it serves, roll back.

原文の言語: 英語

supabase-production

A Supabase query, RPC or migration, 'db push', 'supabase link', RLS or grants, a Supabase error: server-only keys, deny-all RLS, migrations via the CLI.

原文の言語: 英語

environments

Adding a variable or secret, 'set up production', a domain or a provider token, 'which database is this', a leaked key: dev and production for an AI-built app, backups, incidents.

原文の言語: 英語

start-here

Where to start, and what comes next, along the product lifecycle: from a new idea, new evidence, an agreed change, a bug or a release to the next step and the skill that does it. Started by name only: /product:start-here in Claude Code, $product:start-here in…

原文の言語: 英語

mcp-server

Before adding a remote MCP server or tool to a web product, adding OAuth to it, or listing it in a directory: ship it right the first time, tests included.

原文の言語: 英語

agent-instructions

Writing or restructuring AGENTS.md or CLAUDE.md, adding a rule ('remember this'), or after an agent ignored a rule it had: make each rule get met when it applies.

原文の言語: 英語

clerk-production

Setting up or changing Clerk sign-in, organizations, roles or billing on Next.js, or sign-in that does nothing or lands wrong: Clerk in production.

原文の言語: 英語

retro

Build a session's learnings into the setup: its friction, what went wrong and why, then an improved instruction, route, hook or script, verified, or 'no setup change warranted'. Started by name only: /agent-harness:retro in Claude Code, $agent-harness:retro…

原文の言語: 英語

legal-pages

Privacy policy, terms, a cookie banner, consent at sign-up, a public front door: legal pages drafted from what the code does while it is built, held to it by a test, with the owner's facts and sign-off.

原文の言語: 英語

intended-vs-implemented

Auditing AI-built code against its docs: where the code does what the docs or permissions don't say, access control against documented roles, cited on both sides.

原文の言語: 英語

propose

'I have an idea', 'is this worth building', 'what next': research it and propose what to build, with sources and a prototype to review. Not for agreed changes or bugs.

原文の言語: 英語

codex-agents

'Ask Codex', 'check with Codex', handing Codex a build, or stuck between two framings: the Codex CLI as a peer that argues and builds.

原文の言語: 英語

delegation

Before spawning a subagent or dispatching a build, review or research, and before trusting its report: the brief, the delegate, parallel runs, the handoff.

原文の言語: 英語

code-review

'Review this', 'find bugs', 'is this fix safe': review code for defects that matter, correctness first, each finding refuted before it's reported.

原文の言語: 英語

test-harness

Writing or running tests, proving a fix, a red or flaky run, a fix that didn't land, 'is it verified', 'run the gate': tests where green means something.

原文の言語: 英語

uptime-monitoring

Publishing an app, adding /health or a cron job, 'set up monitoring', 'is it down': content checks, a second location, heartbeats, a tested alert route.

原文の言語: 英語

flight-deck

Long agent work that must survive compaction: multi-hour runs, background jobs, work waiting on someone's decision, 'what's the status', 'where were we'.

原文の言語: 英語

guardrail-hooks

An agent keeps breaking a rule ('it did it again', 'make this impossible', 'add a hook', 'my hook didn't fire'): make it a hook, permission rule or script.

原文の言語: 英語

handover

Write the handover a fresh session starts from: the objective, what is true now, the evidence actually obtained, what is left, the open decisions and the next concrete action, reconciled with the disk first. Started by name only: /agent-harness:handover in…

原文の言語: 英語

windows-agent-shell

A coding agent on Windows: Git Bash path rewriting, PowerShell quoting and encoding, CRLF. Use when output comes back garbled, or it works here and breaks there.

原文の言語: 英語

derive-tests

'What should we test' or a coverage map: derive the coverage map and missing tests from docs and code; check mode reports staleness.

原文の言語: 英語

document-app

'Document the app': write or refresh an app's system docs from its code. 'Are the docs right?': check mode, which only reports where docs and code disagree.

原文の言語: 英語

performance-audit-static

Only when a performance audit is asked for (ship-check asks by name; a release proposes one, never runs it): a static audit for N+1 queries, over-fetching, missing indexes and caching.

原文の言語: 英語

security-audit-static

Only when a security audit is asked for (ship-check asks by name; a release proposes one, never runs it): a static audit of AI-built code against its documented trust boundaries and permissions.

原文の言語: 英語

shipping-artifacts

Documenting an AI-built app for handoff, review or audit: the docs that make it reviewable (architecture, flows, permissions, variables, coverage).

原文の言語: 英語

chatgpt-plugin

Before building, submitting or changing a ChatGPT plugin or Apps SDK app: get it through OpenAI's directory review (auth, package, OAuth, data rules, portal).

原文の言語: 英語

design

Before designing a screen or design system, choosing colours, type or components, or judging the look: design, build and review product UI with its owner.

原文の言語: 英語

embedded-agents-agent-sdk

Only when the Agent SDK is asked for, an agent needs Claude Code's own tools, or the app already runs it: embed Claude agents in a Next.js app with the Agent SDK.

原文の言語: 英語

embedded-agents-messages-api

Building, adding or wiring up an agent or an agent chat inside a Next.js app: embed Claude agents on the Messages API, the default way.

原文の言語: 英語

saas-authorization

Adding sign-in, a role, a route that touches data, API tokens, a webhook or job, or 'is this secure': who may do what in a multi-tenant SaaS.

原文の言語: 英語

transactional-email

Adding transactional or alert email, choosing a provider, 'sent twice', 'never arrived': send app email without losing or doubling it, with one-click unsubscribe.

原文の言語: 英語

beachhead-segment

Choosing the first market or customer segment to win, scored on burning pain, willingness to pay, winnable share and referrals.

原文の言語: 英語

competitor-analysis

Competitive research or a competitive brief: competitors and substitutes, their strengths and weaknesses, where to differentiate.

原文の言語: 英語

growth-loops

Designing how a product grows: loops that compound (viral, usage, collaboration, user-generated, referral).

原文の言語: 英語

market-segments

Exploring customer segments, audiences or new markets: 3-5 segments with their jobs, pains and product fit.

原文の言語: 英語