ECC alternatives

affaan-m/ECC (279k stars, +945 this week): The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code… Why it matters: useful plumbing for shipping LLM-powered features.

Below are 12 other LLM tooling repos tracked by OSS Radar that share at least two GitHub topics with ECC, ordered by how many topics overlap, then by stars gained in the last 7 days. Topic overlap means a similar problem space, not a drop-in replacement, so check each project's README.

1. 1. trailhq/Trail-Code

   +119/wkest.

   Turbocharge Claude Code, Cursor, Codex, Gemini & every coding agent: faster, cheaper, with contextual understanding specific to your… Why it matters: useful plumbing for shipping LLM-powered features.

   10k stars · TypeScript · shared topics: ai-agents, anthropic, claude-code, developer-tools, llm, mcp

2. 2. DietrichGebert/ponytail

   +1.3k/wkest.

   Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote. Why it matters: useful plumbing for shipping LLM-powered features.

   163k stars · JavaScript · shared topics: ai-agents, claude, claude-code, developer-tools, llm

3. 3. diegosouzapw/OmniRoute

   +553/wkest.

   Never stop coding. Free MIT AI gateway: one endpoint, 359 providers (150+ free), 1200+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek… Why it matters: useful plumbing for shipping LLM-powered features.

   76k stars · TypeScript · shared topics: ai-agents, anthropic, claude, claude-code, mcp

4. 4. NousResearch/hermes-agent

   +539/wkest.

   The agent that grows with you. Why it matters: useful plumbing for shipping LLM-powered features.

   254k stars · Python · shared topics: ai-agents, anthropic, claude, claude-code, llm

5. 5. Graphify-Labs/graphify

   +392/wkest.

   Turn any codebase, with its docs, SQL schemas, configs, and PDFs, into a queryable knowledge graph. Why it matters: useful plumbing for shipping LLM-powered features.

   126k stars · Python · shared topics: ai-agents, claude-code, developer-tools, llm, mcp

6. 6. rtk-ai/rtk

   +196/wkest.

   CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies. Why it matters: useful plumbing for shipping LLM-powered features.

   83k stars · Rust · shared topics: anthropic, claude-code, developer-tools, llm, productivity

7. 7. lidge-jun/opencodex

   +84/wkest.

   Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK… Why it matters: useful plumbing for shipping LLM-powered features.

   17k stars · TypeScript · shared topics: anthropic, claude, claude-code, developer-tools, llm

8. 8. asgeirtj/system_prompts_leaks

   +77/wkest.

   Documented system prompts from Anthropic - Claude Fable 5.1, Opus 5.5, Claude Design, Claude Code. OpenAI - ChatGPT GPT-6-Astra, Codex. Why it matters: useful plumbing for shipping LLM-powered features.

   70k stars · Python · shared topics: ai-agents, anthropic, claude, claude-code, llm

9. 9. decolua/9router

   +77/wkest.

   Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Why it matters: useful plumbing for shipping LLM-powered features.

   31k stars · JavaScript · shared topics: ai-agents, anthropic, claude, claude-code, llm

10. 10. NanmiCoder/cc-haha

    +28/wkest.

    | Local-first Claude Code AI Agent desktop workspace: multi-agent teams, Git worktrees, diffs, skills marketplace, multi-model, Computer… Why it matters: useful plumbing for shipping LLM-powered features.

    15k stars · TypeScript · shared topics: anthropic, claude, claude-code, llm, mcp

11. 11. thedotmack/claude-mem

    +609/wkest.

    Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects… Why it matters: useful plumbing for shipping LLM-powered features.

    101k stars · TypeScript · shared topics: ai-agents, anthropic, claude, claude-code

12. 12. JuliusBrussee/caveman

    +525/wkest.

    🪨 why use many token when few token do trick. Viral skill + proxy for coding agents that cuts 65% of tokens by talking like a caveman. Why it matters: useful plumbing for shipping LLM-powered features.

    112k stars · Go · shared topics: anthropic, claude, claude-code, llm

More: all trending LLM tooling repos · compare ECC with the top 2