Books
Browse 23 books distilled into 278 actionable agent skills.

Fundamentals of Software Architecture
Mark Richards, Neal Ford
Software ArchitectureThe book's specific scoring models, decision frameworks, and taxonomy — architecture characteristics taxonomy, quantum analysis methodology, style-characteristic star ratings, modularity metrics (LCOM, distance from main sequence), risk matrix scoring, and the 8 fallacies of distributed computing as a feasibility checklist.

Patterns of Enterprise Application Architecture
Martin Fowler, David Rice, Matthew Foemmel, Edward Hieatt, Robert Mee, Randy Stafford
Enterprise Architecture
Working Effectively with Legacy Code
Michael C. Feathers
Legacy Code
Design Patterns
Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides
Design PatternsThe book's 23 patterns with their specific applicability criteria, consequences, and implementation pitfalls. General AI knows pattern names but not the nuanced decision framework: WHEN to use each pattern (applicability), WHEN NOT to (consequences/trade-offs), and HOW to implement correctly (implementation hints specific to each pattern). The 'Related Patterns' cross-references and the case study showing 8 patterns working together are knowledge an LLM doesn't reliably have.

Building Secure and Reliable Systems
Heather Adkins, Betsy Beyer, Paul Blankinship, Piotr Lewandowski, Ana Oprea, Adam Stubblefield
SecurityGoogle-scale operational wisdom: concrete frameworks for least privilege design, resilience patterns (defense in depth, blast radius control, failure domains), secure deployment pipelines with provenance verification, and crisis management playbooks — all treating security and reliability as inseparable.

Designing Data-Intensive Applications
Martin Kleppmann
Data SystemsDeep trade-off analysis frameworks that connect theoretical guarantees (linearizability, serializability, exactly-once) to practical system behavior and failure modes. General AI knows WHAT these concepts are but not HOW to systematically evaluate which combination fits a specific workload.

Fanatical Prospecting
Jeb Blount
Sales
The 1-Page Marketing Plan
Allan Dib
Marketing
Traction
Gabriel Weinberg, Justin Mares
Startup Growth
The Web Application Hacker's Handbook
Dafydd Stuttard and Marcus Pinto
Web SecurityStructured per-vulnerability-class detection methodologies with specific test steps, filter bypass techniques, language-specific dangerous API catalogs, and the comprehensive 13-area testing methodology from Chapter 21 — knowledge that general AI has only in fragments, not as coherent executable procedures.

INSPIRED: How to Create Tech Products Customers Love
Marty Cagan
Product ManagementCagan's specific discovery technique taxonomy (framing, planning, ideation, prototyping, testing — mapped to 4 risk types), team topology principles for product organizations, and the anti-pattern catalog of failed product efforts that general AI would not systematically apply

The Craft of Research, Fourth Edition
Wayne C. Booth, Gregory G. Colomb, Joseph M. Williams, Joseph Bizup, and William T. FitzGerald
Research MethodologyBooth et al.'s specific frameworks (3-step problem formula, warrant logic, problem structure taxonomy, introduction architecture) that general AI doesn't systematically apply — especially the 'So what?' cascade for establishing significance and the claim-warrant connection testing

Hacking Growth
Sean Ellis, Morgan Brown
Growth
SPIN Selling
Neil Rackham
Sales
Influence: The Psychology of Persuasion
Robert B. Cialdini
PersuasionCialdini's 6-principle taxonomy (reciprocity, commitment/consistency, social proof, authority, liking, scarcity) with specific named techniques (door-in-the-face, foot-in-the-door, low-ball, rejection-then-retreat) plus defense strategies for each. General AI knows these terms but doesn't systematically apply all 6 as a diagnostic framework or know the specific exploitation/defense patterns from the research.

Made to Stick
Chip Heath, Dan Heath
Communication
Make It Stick: The Science of Successful Learning
Peter C. Brown, Henry L. Roediger III, Mark A. McDaniel
Learning ScienceSpecific anti-patterns (cramming, rereading, learning styles myth) that general AI might actually reinforce, plus structured protocols for spacing, interleaving, and calibration that require precise scheduling logic the book provides

Refactoring: Improving the Design of Existing Code
Martin Fowler
Refactoring
The Art of Strategy
Avinash K. Dixit & Barry J. Nalebuff
Game TheoryFormal game-theoretic frameworks (backward induction, Nash equilibrium, mixed strategies, commitment analysis, information asymmetry assessment) that general AI doesn't apply systematically to real situations

The Challenger Sale
Matthew Dixon, Brent Adamson
Sales
The Mom Test
Rob Fitzpatrick
Customer DiscoveryThe Mom Test's specific rules for question quality (talk about their life not your idea, ask about past specifics not future generics, talk less and listen more) plus its commitment/advancement framework for distinguishing real interest from politeness — general AI gives generic interview advice but doesn't apply these specific diagnostic rules

$100M Offers
Alex Hormozi
Offers
Never Split the Difference
Chris Voss
NegotiationFBI-developed techniques that exploit cognitive biases and emotional dynamics — tactical empathy, calibrated questions, the Ackerman bargaining model. These are specific processes with exact wording templates, not general advice. General AI knows 'ask open-ended questions'; these skills know WHICH questions, in WHAT order, with WHAT follow-up labels.