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Use when someone asks 'RRF or DBSF?', 'how to combine sparse and dense', 'how to combine scores from multiple searches?', 'custom fusion', or 'fusion is not producing good results'

> Master Gary Halbert's direct response copywriting principles from "The Boron Letters" (1984). The timeless fundamentals that separate pros from amateurs.

> Master David Ogilvy's timeless advertising principles from "Confessions of an Advertising Man" (1963). The Father of Advertising's rules for copy that sells.

> Master Robert Cialdini's 6 (+1) Principles of Persuasion from "Influence: The Psychology of Persuasion" (1984). Ethically apply the psychology of compliance to marketing.

Design and coordinate efficient interview processes with optimal panel composition, scheduling logistics, and candidate experience

Make decisions that your 80-year-old self will thank you for. Master Jeff Bezos' mental model for bold choices that minimize long-term regret. Use when: **Career decisions** with long-term implications; **Startup vs. safe job** choices; **Major life pivots** (relocations, relationships, changes); **Risk-taking decisions** where fear is a factor; **Opportunity evaluation** when considering bold moves

> Anticipate and neutralize every reason customers say "no" before they say it. Combine Chris Voss's negotiation psychology with systematic sales methodology to turn objections into opportunities.

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Commit changes with well-crafted messages, grouping related files into separate commits

This skill should be used when orchestrating complex writing workflows with multiple phases. It provides two-agent orchestration patterns, the two-gate content readiness assessment, 10 baseline writing strategies, 20+ situational strategies, and quality checkpoints. Inspired by the Spiral Writing System.

Install a fast local task workflow for single-project planning with `scripts/task.sh` (claim, done, status, reporting) backed by `tasks/TASKS.md` and optional `tasks/details/` notes. Use for lightweight in-progress task coordination, not full team issue tracking.

Produce first drafts at ~80% voice accuracy using a writer's Voice DNA Document.

Use when writing Go code that returns, wraps, or handles errors — choosing between sentinel errors, custom types, and fmt.Errorf (%w vs %v), structuring error flow, or deciding whether to log or return. Also use when propagating errors across package boundaries or using errors.Is/As, even if the user doesn't ask about error strategy. Does not cover panic/recover patterns (see go-defensive).

Use when deciding whether to use Go generics, writing generic functions or types, choosing constraints, or picking between type aliases and type definitions. Also use when a user is writing a utility function that could work with multiple types, even if they don't mention generics explicitly. Does not cover interface design without generics (see go-interfaces).

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- **Day:** 25 of 100

Dead code removal via parallel scanning, reference verification, batch execution, and atomic commits. You are the ORCHESTRATOR — you scan, verify, batch, then delegate ALL removals.

Identify, analyze, and manage software dependencies before deployment. Use this skill when preparing applications for deployment, resolving dependency conflicts, updating dependencies, auditing security vulnerabilities, managing package versions, or troubleshooting dependency-related issues. Supports multiple package managers (npm, pip, maven, cargo, go mod, composer) and provides actionable recommendations for dependency management.

Instruments authentication, authorization, and input-handling code paths to monitor security-relevant events and states at runtime. Use this skill when developers need to add security monitoring and logging to their code, including tracking authentication attempts (login/logout), authorization decisions (access control checks), input validation failures, session management events, and other security-critical operations. Supports Python, JavaScript/TypeScript, and Java with structured logging patterns. Triggers when users ask to add security instrumentation, monitor security events, log authentication/authorization, track security-sensitive operations, or add security observability to their codebase.

Record final outcomes to history.md, not intermediate requests or reversed decisions

> Context hygiene — compress, prune, archive .squad/ state

Tone enforcement patterns for external-facing community responses

Core conventions and patterns used in the Squad codebase

Safely manage multiple GitHub identities (EMU + personal) in agent workflows

Never read .env files or write secrets to .squad/ committed files

- Agent: DHH 🏎️

Use this skill when you need to QA audit and fix a plugin skill file. Provides a methodology for verifying skill content against official documentation, fixing issues in-place, and producing verification reports.

Practical knowledge about `lib.evalModules` that's hard to find in official docs.

Executes a hotfix workflow: creates a hotfix branch, applies the targeted fix, runs verification, and prepares release artifacts. Use when a critical production bug needs immediate patching or when the user mentions hotfix or emergency fix.

Creates a visual and textual map of the project systems, services, data flows, and integration boundaries. Use when documenting system architecture or when the user mentions system map, architecture diagram, or service boundaries.