Skill Claude CodeCodex
Writes pinning and characterization tests that lock in the current behavior of untested legacy code - bugs included - before a refactor, so any later behavior change trips an alarm. Use when someone says "I need a safety net before refactoring this", "this module has no tests and I have to change it", "capture what…
Skill Claude CodeCodex
Diagnoses SaaS churn root causes through cohort analysis and a seven-category taxonomy, then builds segmented intervention playbooks ranked by frequency, revenue at stake, and addressability - including save-offer economics. Use when someone asks "why is our churn so high", "build a churn reduction plan", "should we…
Skill Claude CodeCodex
Wraps flaky upstream dependencies in circuit breakers, aggressive timeouts, and per-dependency bulkheads so a slow or failing service degrades gracefully instead of cascading into a full outage. Use when a slow or unavailable upstream is stalling your threads, outbound calls hang with no timeout, one dependency's…
Skill Claude CodeCodex
Verifies that every citation is real, unretracted, and complete, rates source quality by evidence tier, and formats reference lists precisely in APA, MLA, Chicago, or IEEE. Use when someone asks "check my references", "format this bibliography in APA", "are these citations real", or "convert my reference list to…
Skill Claude CodeCodex
Decomposes a claim into checkable propositions, traces each through the citation chain to its primary source, appraises the evidence for method and independence, and issues a verdict from Supported to Contradicted with confidence. Use when someone asks "is this claim actually backed by the study it cites", "verify the…
Skill Claude CodeCodex
Designs ClickHouse schemas and queries for fast analytics - MergeTree engine selection, ORDER BY key design, partitioning, materialized views, and projections. Use when someone asks "why is my ClickHouse query slow", "how should I order my sorting key", "should I use a materialized view or projection", "how do I…
Skill Claude CodeCodex
Detect at-risk agency retainer clients early and run the save - a ranked early-warning signal list, the diagnose-before-prescribing save-call procedure with a word-for-word script skeleton, the re-scope-down-not-lose rule, and the 90-day post-loss win-back window. Use when an agency owner says "I think we're about to…
Skill Claude CodeCodex
Design an agency's client communication operating system - a channel contract per client tier, the weekly pulse / monthly report / quarterly QBR ladder, same-business-day response SLAs, the no-surprises rule for bad news, and internal escalation triggers. Use when an agency owner says "clients keep asking what we're…
Skill Claude CodeCodex
Runs a first-14-days client onboarding procedure - kickoff agenda, asset and access collection checklist, a written communication contract, and the first-quick-win rule of shipping something visible in week one. Use when a freelancer or consultant says "new client just signed, now what", "how do I kick off this…
Skill Claude CodeCodex
Produces the weekly 5-block client status report - done, next, blocked, decisions needed, budget/hours - in a 15-minute time cap, from a copy-paste template with [FILL] fields. Use when a freelancer or consultant says "client asked what they're paying for", "how do I keep clients updated", "write my weekly status…
Skill Claude CodeCodex
Produces structured, faithful clinical summaries - either a patient-record summary with strict chronology, medication reconciliation, and expanded abbreviations, or a clinical-study summary with effect sizes, absolute risks, harms, and limitations. Use when someone asks "summarize this patient chart", "turn these…
Skill Claude CodeCodex
Produce and run a word-for-word gym intro-consult script using the CLOSER sequence (Clarify, Label, Overview, Sell, Explain, Reinforce) to take a booked lead to a paid membership. Use when a gym owner or coach asks for a sales script, says "how do I close the consult", "intro consult", "no-sweat consult", "CLOSER…
Skill Claude CodeCodex
Turns a comparative market analysis into a pricing story a seller accepts - defensible comp selection, plain-language adjustments, the overpricing-cost math, and a price-band recommendation aligned to portal search brackets. Use when an agent says "help me present my CMA", "the seller wants to list too high", "how do…
Skill Claude CodeCodex
Run a systematic multi-pass code review - correctness, design, security, performance, tests - and report findings ordered by severity with concrete, respectful suggestions. Use when someone asks "review this PR", "review this diff", "what's wrong with this change", or wants a pre-merge quality gate on a branch. Do NOT…
Skill Claude CodeCodex
Write short, personalized B2B cold emails and follow-up copy - under 90 words, one ask, personalization in the first line - with good/bad contrast pairs to calibrate. Use when someone asks "write a cold email", "why is nobody replying to my outreach", "draft a follow-up sequence", "make this email shorter", or is…
Skill Claude CodeCodex
Sets up and protects cold-outbound sending infrastructure - dedicated lookalike domains, SPF/DKIM/DMARC authentication, 2-4 week mailbox warm-up, 30-50 sends/day per-mailbox caps, and continuous bounce/complaint monitoring, with a runnable DNS audit script. Use when someone says "my emails are going to spam", "set up…
Skill Claude CodeCodex
Audits and repairs color palettes against WCAG contrast thresholds - 4.5:1 for body text, 3:1 for large text and UI components, 7:1 for AAA - and makes them safe for color-blind users, delivering a verified pairing table. Use when someone asks "does this color pass contrast", "make my brand color accessible", "is this…
Skill Claude CodeCodex
Builds an accessible brand color palette - one anchor color, role assignments, 9-step tonal scales, 60-30-10 distribution, and documented usage rules - ready for a developer to implement without guessing. Use when someone asks "pick our brand colors", "build a color system for our app", "what shade should our buttons…
Skill Claude CodeCodex
Builds the student community system for a paid course - platform choice by where students already are, an introduce-yourself onboarding ritual, a weekly cadence of office hours, wins threads, and accountability checks, a hard creator-time budget, and scheduled testimonial-harvest moments. Use when a course creator…
Skill Claude CodeCodex
Builds an honest "X vs Y" or "best alternative to X" comparison page - scannable table plus use-case routing copy - for high-intent commercial searches. Use when someone asks "write a page comparing us to a competitor", "build an X vs Y comparison page", "create an alternative-to page", or wants a competitor…
Skill Claude CodeCodex
Map competitors across positioning, product, pricing, proof, and weaknesses, then turn the research into sales-ready battlecards with an update cadence. Use when someone asks "what are our competitors doing", "build a battlecard", "how do we compare to X", "why are we losing deals to X", or before a pricing or…
Skill Claude CodeCodex
Identifies which of the seven structural moats a business actually has, pressure-tests each claim against funded copycats and incumbent pivots, and delivers a moat scorecard with one moat to invest in deliberately. Use when someone asks "what's our moat", "is our product defensible", "a well-funded competitor just…
Skill Claude CodeCodex
Facilitates workplace and interpersonal conflict resolution using Nonviolent Communication and interest-based negotiation, producing a mediation plan, de-escalation scripts, and a written agreement with a check-in date. Use when someone asks "how do I resolve a conflict with my coworker", "two of my reports are…
Skill Claude CodeCodex
Diagnoses connection pool exhaustion from captured evidence and sets correct pool sizes and timeouts across app pools and PgBouncer. Use when someone says "we keep hitting database connection limit errors under load", "my API times out waiting for a connection from the pool", "the database shows hundreds of idle…
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