Browse Skills

filter-js-from-html.md

13

1 export filter-js-from-html

2 from "letta-ai/skills"

3 Guidance for removing JavaScript from HTML while preserving structure and formatting. This skill applies when filtering XSS vectors, sanitizing HTML content, removing script tags and event handlers, or building HTML sanitization tools. It covers comprehensive XSS vector identification, format-preserving transformations, and verification strategies.

2026-01-21

django-coder.md

13

1 export django-coder

2 from "majesticlabs-dev/majestic-marketplace"

3 Build Django applications with models, views, forms, templates, REST APIs, and modern Django 5.x patterns.

2026-01-22

custom-memory-heap-crash.md

13

1 export custom-memory-heap-crash

2 from "letta-ai/skills"

3 Debugging crashes related to custom memory heap implementations, particularly release-only crashes involving static destruction order, use-after-free during program shutdown, and memory lifecycle issues between custom allocators and standard library internals. This skill should be used when debugging segfaults or memory corruption that only occur in release/optimized builds, involve custom memory allocators or heap managers, or manifest during static object destruction after main() returns.

2026-01-21

qemu-alpine-ssh.md

13

1 export qemu-alpine-ssh

2 from "letta-ai/skills"

3 This skill provides guidance for setting up Alpine Linux virtual machines in QEMU with SSH access via port forwarding. It should be used when tasks involve running Alpine Linux in QEMU, configuring SSH access to VMs, setting up port forwarding for VM network access, or troubleshooting QEMU networking issues.

2026-01-21

backblaze-coder.md

13

1 export backblaze-coder

2 from "majesticlabs-dev/majestic-marketplace"

3 This skill guides Backblaze B2 Cloud Storage integration with OpenTofu/Terraform and B2 CLI. Use when managing B2 buckets, application keys, file uploads, lifecycle rules, or S3-compatible storage.

2026-01-22

founder-mode.md

13

1 export founder-mode

2 from "majesticlabs-dev/majestic-marketplace"

3 Help founders run companies using contrarian principles with real examples from successful founders. Challenge standard advice designed for professional managers. Use when facing strategic decisions, organizational challenges, or receiving conventional advice that conflicts with founder instincts.

2026-01-22

action-mailer-coder.md

13

1 export action-mailer-coder

2 from "majesticlabs-dev/majestic-marketplace"

3 Use when creating or refactoring Action Mailer emails. Applies Rails 7.1+ conventions, parameterized mailers, preview workflows, background delivery, and email design best practices.

2026-01-22

typography-spacing-enforcer.md

13

1 export typography-spacing-enforcer

2 from "sgcarstrends/sgcarstrends"

3 Enforce Typography system and modern spacing conventions. Use when implementing new UI components to ensure design consistency with project standards.

2026-01-21

extract-moves-from-video.md

13

1 export extract-moves-from-video

2 from "letta-ai/skills"

3 Guidance for extracting text-based game commands, moves, or inputs from video recordings using OCR and frame analysis. This skill applies when extracting user inputs from screen recordings of text-based games (Zork, interactive fiction), terminal sessions, or any video where typed commands need to be recovered. It covers OCR preprocessing, region-of-interest extraction, domain-aware validation, and deduplication strategies.

2026-01-21

feal-linear-cryptanalysis.md

13

1 export feal-linear-cryptanalysis

2 from "letta-ai/skills"

3 This skill provides guidance for FEAL cipher linear cryptanalysis tasks. It should be used when recovering encryption keys from FEAL-encrypted data using known plaintext-ciphertext pairs, implementing linear approximation attacks on block ciphers, or solving cryptanalysis challenges involving the FEAL cipher family. The skill emphasizes mathematical analysis over brute-force approaches.

2026-01-21

ln-223-story-replanner.md

13

1 export ln-223-story-replanner

2 from "levnikolaevich/claude-code-skills"

3 Replans Stories when Epic requirements change. Compares IDEAL vs existing, categorizes operations (KEEP/UPDATE/OBSOLETE/CREATE), executes in Linear.

2026-01-21

install-windows-3-11.md

13

1 export install-windows-3-11

2 from "letta-ai/skills"

3 Guidance for setting up legacy Windows VMs (like Windows 3.11) in QEMU with web-based remote access via noVNC. This skill should be used when tasks involve running legacy operating systems in virtual machines, configuring QEMU for older OS images, setting up VNC/noVNC web interfaces, or establishing programmatic keyboard control via QMP. Covers VM boot verification strategies, nginx reverse proxy configuration, and websockify setup.

2026-01-21

protein-assembly.md

13

1 export protein-assembly

2 from "letta-ai/skills"

3 Guidance for designing and assembling multi-component fusion protein sequences, particularly for FRET biosensors and tagged constructs. This skill applies when tasks involve identifying proteins by spectral properties (excitation/emission wavelengths), assembling fusion proteins from multiple domains, codon optimization with GC content constraints, working with PDB sequences and fluorescent protein databases, or generating gBlock sequences for gene synthesis.

2026-01-21

tailwind-styling.md

13

1 export tailwind-styling

2 from "majesticlabs-dev/majestic-marketplace"

3 Generate responsive, performant Tailwind CSS styles for React components. Use when styling components, building design systems, or implementing responsive layouts.

2026-01-22

large-scale-text-editing.md

13

1 export large-scale-text-editing

2 from "letta-ai/skills"

3 Guidance for transforming large text files (thousands to millions of rows) using text editors like Vim. This skill should be used when the task involves bulk text transformations, CSV manipulation, column reordering, regex-based find-and-replace operations, or when there are keystroke/efficiency constraints. Applies to tasks requiring macro-based editing, batch substitutions, or complex text processing where understanding the transformation pattern from input/output samples is needed.

2026-01-21

dna-assembly.md

13

1 export dna-assembly

2 from "letta-ai/skills"

3 Guidance for Golden Gate assembly primer design and DNA assembly tasks. This skill should be used when designing primers for Golden Gate cloning, Type IIS restriction enzyme assembly, or multi-fragment DNA assembly workflows. It covers overhang selection, primer structure, assembly simulation, and verification strategies.

2026-01-21

documents-pptx.md

13

1 export documents-pptx

2 from "malhashemi/dotfiles"

3 Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks

2026-01-05

git-multibranch.md

13

1 export git-multibranch

2 from "letta-ai/skills"

3 Guidance for setting up Git-based multi-branch deployment systems with web servers. This skill applies when configuring Git repositories with post-receive hooks that deploy different branches to different directories, typically served by Nginx or Apache. Use for tasks involving SSH-accessible Git servers, branch-specific deployments, and web server configuration.

2026-01-21

fix-code-vulnerability.md

13

1 export fix-code-vulnerability

2 from "letta-ai/skills"

3 Guidance for identifying and fixing security vulnerabilities in code. This skill should be used when asked to fix security issues, address CVEs or CWEs, remediate vulnerabilities like injection attacks (SQL, command, CRLF, XSS), or when working with failing security-related tests.

2026-01-21

ai-structured-output.md

13

1 export ai-structured-output

2 from "sgcarstrends/sgcarstrends"

3 Generate type-safe AI content using Gemini structured output with Zod validation and Code Execution Tool. Use when building AI generation functions that need guaranteed output format.

2026-01-21

ln-112-project-core-creator.md

13

1 export ln-112-project-core-creator

2 from "levnikolaevich/claude-code-skills"

3 Creates 3 core project docs (requirements.md, architecture.md, tech_stack.md). L3 Worker invoked by ln-110-project-docs-coordinator. ALWAYS created.

2026-01-21

train-fasttext.md

13

1 export train-fasttext

2 from "letta-ai/skills"

3 Guidance for training FastText text classification models with constraints on model size and accuracy. This skill should be used when training FastText models, optimizing hyperparameters, or balancing trade-offs between model size and classification accuracy.

2026-01-21

ln-331-task-executor.md

13

1 export ln-331-task-executor

2 from "levnikolaevich/claude-code-skills"

3 Executes implementation tasks (Todo -> In Progress -> To Review). Follows KISS/YAGNI, guides, quality checks. Not for test tasks.

2026-01-21

feal-linear-cryptanalysis.md

13

1 export feal-linear-cryptanalysis

2 from "letta-ai/skills"

3 Guide for performing linear cryptanalysis attacks on FEAL and similar Feistel ciphers. This skill should be used when tasks involve breaking FEAL encryption, recovering cipher keys using known plaintext-ciphertext pairs, or implementing linear cryptanalysis techniques. Applies to cryptographic challenges mentioning "linear attack," "FEAL," "Feistel cipher analysis," or key recovery from plaintext-ciphertext pairs.

2026-01-21