Make Claude better at your job.

Eighty-six experts who know which question to ask you next — for the email you've been dreading, the meeting you have to lead, the call you've been circling. One click. Free.

Add Black Book to Claude

Mac & Windows · 30 seconds · No account, no keys, no setup

What it is

A drawer of smart helpers Claude can pull from.

You already talk to Claude. Black Book gives Claude eighty-six experts to call on — one for sales emails, one for the all-hands, one for the hiring decision. You don't pick which one. Claude does, silently, based on what you're asking. You just keep talking like always.

A drawer of helpers. Claude reaches in.

Three things people use it for

Real examples, not made-up ones.

The email you've been putting off

The one where you need to be firm without being rude. You've been staring at the blank reply for two days.

"Help me write a kind but firm email to a vendor who's missed three deadlines and keeps making excuses."

Black Book pulls in the cold-outreach helper. It asks what your last exchange looked like and what outcome you actually want — then writes the email. Three subject lines. The body. A kindly-worded close. You tweak a sentence. You send.

Two days of dread → five minutes of work.

The all-hands you have to lead

Rough quarter. Full team in the room tomorrow. You want to be honest without making everyone feel like the sky is falling.

"My team had a rough quarter. What should I say at the all-hands tomorrow?"

Black Book pulls in the leadership-comms helper. It asks what actually happened, who'll be there, and what you want them walking out feeling. Then it gives you structure, talking points, three openings to choose from. You pick the one that sounds like you.

A speech that lands, with five minutes of prep.

The decision you've been circling

The one without an obvious right answer. The one you keep rerunning in your head on walks.

"Should I hire a fifth person on my team this quarter, or wait?"

Black Book pulls in the team-leadership advisor. It asks what work is piling up, what your runway looks like, who you'd hire and why — then walks you through the trade-offs and points out the thing you hadn't been thinking about.

The call feels obvious. You move on.

Install

One click. Done.

No account. No setup. No keys.

Download Black Book

Click the button. A 4 KB file downloads.
Find it in your Downloads folder. Double-click.
Claude Desktop asks "Install Black Book?" Click Install.
Reopen Claude. Talk to it like always.

Works on macOS and Windows. Need help? See the FAQ.

What's inside

Eighty-six helpers, organized into nine areas.

Eighty-six helpers across nine areas: marketing, sales, leadership, people, product & engineering, strategy & ops, finance, customer success, and writing. From cold emails to QBR decks, OKRs to job descriptions, postmortems to proposals.

You don't pick — Claude does, based on what you're asking.

▸ See every helper by name

Marketing

Help with everything from cold outreach to category positioning.

sales-email-writerDrafts sales emails, follow-up sequences, and re-engagement messages.
cold-outreach-copywriterFirst-touch cold emails and LinkedIn DMs that don't sound like every other one.
landing-page-copywriterFull landing pages or specific sections, tuned to your audience.
ad-copywriterPaid ad copy for Meta, Google, LinkedIn, X, TikTok — multiple variants per slot.
blog-post-writerLong-form blog posts — guides, opinion pieces, comparisons, listicles.
newsletter-writerNewsletter editions with subject lines, structure, and a real voice.
social-post-writerOrganic social posts for LinkedIn, X, Instagram, Threads.
video-script-writerScripts for YouTube, TikTok, sales videos, AI-generated video prompts.
press-release-writerPress releases and the journalist-pitch email to go with them.
seo-meta-writerTitle tags, meta descriptions, OG cards, schema markup.
cmo-advisorStrategic marketing decisions — channel mix, brand, OKRs, hiring.
growth-strategistGrowth loops, funnels, north-star metrics, experimentation.
positioning-coachPositioning, messaging, ICP, category, what makes you different.
content-strategistContent calendars, editorial themes, distribution plans.
competitive-analystCompetitor teardowns, audits, market mapping, win/loss analysis.

Sales

From discovery scripts to closing complex deals.

discovery-call-script-writerDiscovery-call scripts with questions, problem-framing, and next steps.
demo-deck-writerSlide-by-slide demo decks with the talk track that goes with them.
proposal-writerSales proposals — cover letter, scope, pricing, terms.
battlecard-writerField-ready competitor cards reps actually use.
case-study-writerCustomer case studies for decks, pages, and proposals.
sdr-cadence-builderMulti-touch outbound sequences for SDRs.
mutual-action-plan-writerMAPs for keeping enterprise deals moving through procurement.
objection-handling-playbook-writerObjection cards with 30-second responses for live calls.
sales-leader-advisorComp plans, hiring, segmentation, forecast review.
discovery-coachDiscovery audits, qualification, follow-through.
pipeline-strategistPipeline coverage, conversion, forecast accuracy.
enterprise-sales-coachMulti-stakeholder enterprise deals, security review, procurement.

Leadership

Communications and exec-level thinking — for CEOs, COOs, and the people who keep them shipping.

vision-memo-writerVision and strategy memos that actually land company-wide.
all-hands-talking-points-writerAll-hands talking points and prepared remarks.
board-update-writerBoard updates and pre-reads.
exec-comms-writerSlack announcements, leadership emails, exec social posts.
company-values-writerCompany values and operating principles you'd actually defend.
ceo-advisorStrategy, fundraising, board, exec hires, pivot calls.
coo-advisorOperating cadence, exec coordination, scaling friction.
exec-coachHard conversations and inflection points — listening-first.
org-design-strategistReporting lines, span-of-control, exec layers.
crisis-comms-coachOutages, layoffs, sensitive customer comms.

People

Job descriptions, interviews, reviews — and the strategic-people work above them.

job-description-writerJDs with anti-criteria and outcomes, not vague responsibilities.
interview-kit-builderStructured interview loops, rubrics, debrief templates.
perf-review-writerPerformance reviews, growth plans, calibration write-ups.
onboarding-plan-writer30/60/90 onboarding plans with named intros and first-ship targets.
offer-letter-writerFormal offer letters and plain-English candidate summaries.
people-policy-writerHandbooks, conduct, remote work, time-off, leveling.
people-leader-advisorCHRO / VP People decisions and culture interventions.
compensation-strategistPay banding, equity refresh, sales comp design.
talent-strategistHiring plans, sourcing, recruiter capacity.
employee-experience-coachEX, rituals, engagement-survey diagnostics.

Product & Engineering

PRDs, release notes, migrations — and the leadership work behind them.

prd-writerProduct specs with non-goals, testable user stories, success metrics.
release-notes-writerPublic release notes and in-app changelog entries.
user-story-writerUser stories with testable acceptance criteria.
api-doc-writerAPI and SDK reference, quickstarts, error tables.
migration-plan-writerDatabase, infra, vendor migrations with rollback plans.
product-leader-advisorVP Product / CPO decisions — roadmap, portfolio, hiring.
engineering-leader-advisorVP Engineering decisions — org, build-vs-buy, debt, hiring.
prioritization-coachSprint planning, backlog triage, impact-vs-effort calls.
product-strategistMulti-quarter strategy, market wedges, portfolio bets.

Strategy & Operations

Goals, postmortems, decision memos, operating rhythm.

okr-writerObjectives and measurable key results with rationale.
postmortem-writerBlameless, action-driven incident or launch postmortems.
decision-memo-writerDecision memos / RFCs / six-pagers with trade-offs visible.
operating-cadence-writerThe operating-rhythm doc — the meetings that actually matter.
process-doc-writerRunbooks, playbooks, SOPs that survive contact with the team.
specialist-builderA meta-helper that designs new helpers in the same style.
chief-of-staff-advisorDecision throughput, exec calendar, OKR-process design.
operations-strategistOperating-model design, bottleneck analysis.
strategy-coachWhere-to-play / how-to-win, market entry, "should we?".

Finance

Board updates, budgets, fundraising — and the strategy underneath them.

board-financial-update-writerKPI summaries, P&L commentary, runway, scenarios.
investor-update-writerMonthly or quarterly investor updates with real asks.
budget-narrative-writerBudget narratives — the prose that explains the numbers.
financial-policy-writerExpense policy, T&E, signing authority, capex.
variance-explainer-writerPlan-vs-actual variance writeups for boards and audit.
cfo-advisorFundraising, runway, plan design, M&A, IPO readiness.
fp-and-a-strategistModeling, forecasting, dashboards, finance data architecture.
fundraise-narrative-coachPitch story, why-now, wedge, moat, trajectory framing.

Customer Success

QBRs, expansion conversations, save calls — the work that keeps customers.

qbr-deck-writerQBR decks led by the customer's goals, not your highlight reel.
customer-health-summary-writerHealth summaries with multi-signal verdicts and renewal forecasts.
churn-save-script-writerSave scripts with discovery, graduated concessions, and walk-aways.
expansion-pitch-writerUpsell and cross-sell pitches with payback math.
customer-apology-writerApology and recovery messages — owned, specific, no upsell.
cs-leader-advisorCCO / VP CS decisions — segmentation, comp, retention strategy.
csm-coachOne-on-one CSM call prep, debrief, exec-conversation coaching.

Writing & Creative

Books, courses, podcasts, brand voice, creative direction.

book-outline-writerChapter-level outlines for non-fiction and memoir.
course-curriculum-writerOutcome-driven course curricula with capstones and pacing.
speaker-bio-writerSpeaker, panel, and podcast bios in four length variants.
podcast-show-notes-writerShow notes, time stamps, social pull-quotes.
brand-voice-coachVoice and tone, voice audits, training new writers.
creative-director-advisorCampaigns, rebrands, design-system bets, agency vs. CD calls.

Common questions

Things people ask first.

Is this safe to install?

Yes. Open source — read every line on GitHub. The downloaded file is about 4 KB; it just tells Claude where to find the eighty-six helpers. Your conversations stay between you and Claude.

Does it cost money?

No. Free, staying free. Soft cap of about thirty questions per hour on the shared server — plenty for normal use. Hit the cap and you can self-host; cap goes away.

Do I need to be technical to use it?

No. You keep talking to Claude like you always do. The install is two clicks.

What if Claude already knows about, say, marketing?

Generally, yes. Generally is the problem. The helpers are specific — they know what to ask you so the answer is actually useful. The difference shows up most when you're stuck.

What if I install it and don't like it?

Open Claude Desktop's settings, find Black Book, click remove. Five seconds. Nothing else changes.

What about Claude Code (the developer tool)?

There's a richer version with slash commands, sub-agents, and full-blown workflows. See the developers section below.

Who made this?

Lorenzo Swank made it. MIT licensed, on GitHub, free to fork and self-host.

Why this exists

A note from the maker.

Claude is a remarkable generalist. Most of us, though, aren't generalists at work — we have specific jobs, with specific problems, that have specific right answers.

Black Book is a small library of hand-tuned experts for the specific kind. It makes Claude noticeably better at office work without changing how you talk to it.

Free. Open source. Staying that way.

Try it on one task this week.

Add Black Book to Claude

30 seconds · Free forever

If it makes Tuesday afternoon easier, it earned the install.

For developers

If you use Claude Code, want to self-host, or want to read the source — start here.