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Harness
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Skills, MCP servers, prompts, assistants and connectors. Every listing shows its author, version and the permissions it needs.
On the shelves21,000
- MCP servers18,849
- Skills1,282
- Assistants651
- Prompts218
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MemorySpecialist assistants, also called subagents. Installed in Claude Code, Codex and the like, they take on the work their main session hands them.
- Math proof worker deepanthropics· math-proof 38kThe higher-effort math-proof worker, used from the escalation round on (round 4, unless the siege setting ESC_ROUND says otherwise). It answers one self-contained question from a file, writing its answer to a file as it reasons. It has no memory between questions and is launched only by the math-proof plugin's siege skill.Same as sessionMemoryWriting
- Performance Optimizeraffaan-m 275kPerformance analysis and optimization specialist. Profiling, memory leaks, render optimization, and algorithmic improvements.SonnetMemory
- ARM cortex expertwshobson· arm-cortex-microcontrollers 40kSenior embedded software engineer specializing in firmware and driver development for ARM Cortex-M microcontrollers (Teensy, STM32, nRF52, SAMD). Decades of experience writing reliable, optimized, and maintainable embedded code with deep expertise in memory barriers, DMA/cache coherency, interrupt-driven I/O, and peripheral drivers.Same as sessionMemoryWriting
- C prowshobson· systems-programming 40kWrite efficient C code with proper memory management, pointer arithmetic, and system calls. Handles embedded systems, kernel modules, and performance-critical code.OpusMemoryCoding
- Memory engineeralirezarezvani· memory-engineering 28kUse when someone is adding memory to an agent, choosing a memory architecture, auditing an existing memory store, or asking why their memory system is expensive, slow, or wrong. Prices the write path, names which cost the design is paying, classifies what the store actually holds, and refuses to sign off a design with no forgetting policy.Same as sessionMemoryArchitecture
- Backend development performance engineerwshobson· backend-development 40kProfile and optimize application performance including response times, memory usage, query efficiency, and scalability. Use for performance review during feature development.SonnetMemoryBackend
- C++ prowshobson· systems-programming 40kWrite idiomatic C++ code with modern features, RAII, smart pointers, and STL algorithms. Handles templates, move semantics, and performance optimization.OpusMemoryCoding
- Memory Curatoralirezarezvani· agent-memory 28kCurates the tiered agent-memory store. Use when reviewing what the agent has learned from past sessions, adopting staged promotions into CLAUDE.md, resolving a contested claim, or tracing where a remembered line came from. Refuses to adopt anything it cannot cite, and refuses to adopt a redacted claim at all.Memory
- Memory Analystalirezarezvani· self-improving-agent 28kRead-only analyst for `~/.claude/projects/<project>/memory/`. Identifies promotion candidates (entries proven enough for CLAUDE.md), stale references, consolidation opportunities, conflicts with existing CLAUDE.md rules, and reports health metrics (capacity, freshness, organization). Spawned by `/si:memory-review`.Same as sessionMemoryMonitoringHealth
- Context managerwshobson· agent-orchestration 40kElite AI context engineering specialist mastering dynamic context management, vector databases, knowledge graphs, and intelligent memory systems. Orchestrates context across multi-agent workflows, enterprise AI systems, and long-running projects with 2024/2025 best practices.Same as sessionDatabasesMemoryAgents
- DGX spark ops engineerwshobson· dgx-spark-ops 40kNVIDIA DGX Spark environment doctor for GB10/aarch64/CUDA-13 systems. Diagnoses and fixes ML stack setup, unified-memory, and thermal issues.SonnetMemoryCoding
- C++ revieweraffaan-m 275kExpert C++ code reviewer specializing in memory safety, modern C++ idioms, concurrency, and performance. Use for all C++ code changes.SonnetMemory
- Swift revieweraffaan-m 275kExpert Swift code reviewer specializing in protocol-oriented design, value semantics, ARC memory management, Swift Concurrency, and idiomatic patterns. Use for all Swift code changes.SonnetMemory