Skill Claude CodeCodex
Translates common lab panels - CBC, CMP, lipid panel, thyroid, hormones, HbA1c - into plain language, flags values against the lab's own reference ranges, and produces a prioritized question list to bring to a physician. Use when someone asks "what does my bloodwork mean", "is my ALT high", "explain my lipid panel"…
Skill Claude CodeCodex
Runs a company board as an instrument - cadence, a no-surprises pre-wire, a board pack shipped days ahead, and meetings that end in decisions with owners. Use when someone asks "how do I prepare for my board meeting", "what goes in a board deck", "my board meetings feel like theater", "how often should we meet", or…
Skill Claude CodeCodex
Writes non-fiction book proposals that sell to agents and acquiring editors - an overview hook answering why this book and why now, author platform with real numbers, target market, honest recent comps, a marketing plan, and a chapter outline that proves a full book exists. Use when an author asks "write my book…
Skill Claude CodeCodex
Writes a brand guidelines document - personality traits with is/is-not definitions, voice principles, a tone-by-context matrix, writing mechanics, a say-this-not-that word list, and visual usage rules - all made concrete with do/don't examples. Use when someone asks "write our brand guidelines", "document our voice…
Skill Claude CodeCodex
Generates twenty-plus brand or product name candidates across five naming archetypes, scores them against weighted criteria without averaging, and runs linguistic and memorability safety checks. Use when someone asks "help me name my startup", "is this a good product name", "generate name ideas for this feature", or…
Skill Claude CodeCodex
Builds a zero-based monthly budget from take-home income using the 50/30/20 framework with explicit adaptation rules and sinking funds for irregular expenses. Use when someone says "help me make a budget", "I don't know where my money goes", "my spending feels out of control", or after an income change or move. Do NOT…
Skill Claude CodeCodex
Paces and reallocates ad budget across channels through the month to hit both CAC and volume targets, with daily tolerance bands, a reallocation reserve, and escalation red lines. Use when someone asks "are we pacing to spend the budget", "we're overspending and it's only the 12th", "should I move budget from Meta to…
Skill Claude CodeCodex
Structures a budget-vs-actual variance analysis that isolates root causes - price/volume/mix decomposition, timing vs structural expense buckets, a materiality screen, and reforecast flags - instead of restating numbers. Use when someone asks "why did we miss budget", "write the variance commentary for the board…
Skill Claude CodeCodex
Build an application on Builder.io's open-source Agent-Native framework (@agent-native/core) - the model where the agent acts inside the app as a first-class peer to the UI, sharing one set of actions and one database with the interface. Covers the core primitives (actions as the single source of truth, SQL-backed…
Skill Claude CodeCodex
Produces a documented inventory of the implicit business rules, edge cases, and bug-as-feature behaviors that tangled code encodes, with real input-to-output examples, so a rewrite preserves behavior. Use when you are about to rewrite, port, or replace legacy code whose only specification is the source, and you see…
Skill Claude CodeCodex
Keeps not-yet-ready homebuyers warm for months with timeline-based segmentation, listing alerts with a why-this-one note, a monthly market-update touch, the pre-approval nudge, and re-engagement triggers. Use when an agent says "keep my buyer leads warm", "these buyers aren't ready yet", "build my buyer drip", or…
Skill Claude CodeCodex
Use when you need to decide WHO IN YOUR ICP TO HIT NOW based on timing and trigger events rather than static fit - "who should I reach out to this week", "what's a good reason to reach out", "track buying signals", "find trigger events", "champion changed jobs", "they just raised a round", "new VP just started"…
Skill Claude CodeCodex
Designs multi-layer caching - CDN, application, and database - choosing the pattern, TTL, and invalidation plan per data type, and produces a cache-decision table plus stampede protection. Use when someone asks "should I cache this", "Redis or CDN for this endpoint", "how do I invalidate this cache", "why is my cache…
Skill Claude CodeCodex
Drafts short, honest recruiting outreach and InMail messages to a passive candidate, anchored on one researched, candidate-published professional fact, for a human recruiter to review and send. Use when someone asks "write an InMail to this engineer", "personalize this sourcing message", "draft outreach from this…
Skill Claude CodeCodex
Use when a founder needs to understand or model ownership and dilution. Triggers on "model my cap table", "how much will I be diluted", "option pool", "SAFE conversion", "post-money vs pre-money", "what do I own after this round", "pro rata". Turns equity from a black box into a model the founder controls.
Skill Claude CodeCodex
Produce an accurate, properly timed caption track (SRT or WebVTT) from a video's audio - transcribing or aligning to the voiceover script, timing cues to speech, and enforcing line-length and reading-speed rules so captions are readable and in sync. Use when someone says "generate captions", "make subtitles from the…
Skill Claude CodeCodex
Scripts a multi-slide Instagram or LinkedIn carousel as a hook slide, one-idea-per-slide value frames, and a single-CTA closing slide, with per-slide copy and design direction. Use when the user asks to write, script, or outline a carousel, turn a post/idea/listicle into swipeable slides, or build an Instagram…
Skill Claude CodeCodex
Turn a customer win into a credible case study - interview-driven raw material, a challenge-solution-results arc, and a quantified results section with real customer quotes. Use when someone asks "write a case study from this customer call", "turn this win into a customer story", "what should I ask the customer in the…
Skill Claude CodeCodex
Builds a rolling 13-week and 12-month cash flow forecast with runway view. Use when managing liquidity, planning for fundraising, preparing board materials, or stress-testing the business under downside scenarios.
Skill Claude CodeCodex
Write the intro and lower-page copy for an ecommerce collection or category page so it ranks for a commercial query while pushing shoppers toward a product fast. Use when someone asks "write copy for my ecommerce category pages", "write the intro blurb for my collection page", or "write SEO copy for my collection page…
Skill Claude CodeCodex
Selects and executes a credible causal identification strategy - RCT, natural experiment, difference-in-differences, regression discontinuity, instrumental variables, or matching - ranked by assumption strength, with a confounder checklist, falsification tests, and a defensible effect estimate. Use when someone asks…
Skill Claude CodeCodex
Generate or update a repository CHANGELOG.md in Keep a Changelog format from git history - grouping commits since the last tag into Added/Changed/Deprecated/Removed/Fixed/Security, rewriting them as user-facing entries, and recommending the semantic version bump. Use when someone asks "generate a changelog from the…
Skill Claude CodeCodex
Translates raw engineering release notes - commits, tickets, PR titles - into a user-facing changelog grouped as New, Improved, and Fixed, with a highlights section on top, benefit-first phrasing in the user's vocabulary, bugs described by their symptoms, and internal-only churn cut and flagged. Use when someone says…
Skill Claude CodeCodex
Picks, sequences, and scales the distribution channels that fit a company's economics, producing a scored channel matrix and a 12-month sequencing plan. Use when someone asks "which marketing channel should we focus on", "should we do paid or content or outbound", "our growth is stalling across channels", "when do we…