Token efficiency: tools for developers

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

1. 1

   Spiderbrain-V3

   Skill

   DormantLast commit 3 months ago · 2026-06-04

   SpiderBrain v3 is a multi-platform skill/framework to reduce token usage and AI hallucinations across Claude, Cursor, and other AI tools.

   • agent-skills
   • ai
   • ai-agents
   • anthropic
   • claude

   githubcreated 3 months agomeasured growthOpen source ↗

   Install git clone https://github.com/abhishek-performdigital/Spiderbrain-V3 ~/.claude/skills/Spiderbrain-V3

   65GitHub starsstable
2. 2

   io.github.omkar9854/token_optimizer

   MCP

   ActiveLast commit 49 days ago · 2026-07-19

   Reversible context compression for AI agents: cut token usage up to 94%, originals retrievable

   ↓ 13 downloads/weekPythonLicense: Apache-2.0

   mcpcreated 49 days agomeasured growthOpen source ↗

   Install claude mcp add token_optimizer -- uvx slimctx

   1GitHub starsstable
3. 3

   mcp-recall

   Skill

   ActiveLast commit 2 days ago · 2026-09-05

   mcp-recall compresses MCP tool outputs (94 KB → 3.5 KB · 96%) and stores full results in SQLite for retrieval — up to 30x more tool calls per session for heavy MCP workloads.

   TypeScriptLicense: MIT

   • bun
   • claude
   • claude-code
   • claude-code-plugin
   • context-window

   githubcreated 6 months agomeasured growthOpen source ↗

   Install /plugin marketplace add sakebomb/mcp-recall

   8GitHub starsstable
4. 4

   claude-teams-brain

   Skill

   DormantLast commit 5 months ago · 2026-03-15

   Give your Claude Code Agent Teams a memory. Auto-injects role-specific context into every new teammate — your team never starts blind again.

   Python

   • agent-teams
   • ai-agents
   • anthropic
   • claude
   • claude-ai

   githubcreated 6 months agomeasured growthOpen source ↗

   Install /plugin marketplace add Gr122lyBr/claude-teams-brain

   26GitHub starsstable
5. 5

   governor

   Skill

   ActiveLast commit today · 2026-09-06

   Claude Code usage governor: compact professional output, context slimming, tool-output filtering, telemetry, and drift guardrails.

   PythonLicense: MIT

   • ai-tools
   • claude-ai
   • claude-code
   • claude-code-plugin
   • claude-skills

   githubcreated 4 months agomeasured growthOpen source ↗

   Install /plugin marketplace add 0xhimanshu/governor

   133GitHub starsstable
6. 6

   webfetch

   Skill

   ActiveLast commit 46 days ago · 2026-07-23

   Own your LLM's web search: a local search->fetch->rank pipeline that replaces hosted web-search tools. Measured: matches hosted accuracy at 66% lower cost and up to 88% fewer tokens, plus a precision-tuned semantic caching with…

   PythonLicense: MIT

   • agent-memory
   • agent-skills
   • agentic-workflow
   • agents
   • anthropic

   githubcreated 4 months agomeasured growthOpen source ↗

   Install git clone https://github.com/firish/webfetch ~/.claude/skills/webfetch

   55GitHub starsstable
7. 7

   quiv

   Skill

   ActiveLast commit 5 days ago · 2026-09-01

   The Agent Knowledge Kit & Architecture System — 10–32x token-efficient architecture discovery for AI coding agents

   TypeScript

   • agentic-ai
   • ai-agents
   • antigravity
   • bun
   • claude-code

   githubcreated 6 days agonewmeasured growthOpen source ↗

   Install git clone https://github.com/chama-x/quiv ~/.claude/skills/quiv

   3GitHub starsstable
8. 8

   bonsai

   Skill

   DormantLast commit 4 months ago · 2026-04-22

   Drop-in Cursor rules to cut AI response tokens (no filler/hedging, preserve code + technical strings). Includes local, reproducible benchmarks.

   JavaScriptLicense: MIT

   • benchmarking
   • bonsai
   • cursor
   • cursor-rules
   • developer-tools

   githubcreated 4 months agomeasured growthOpen source ↗

   Install git clone https://github.com/marcomondelli/bonsai ~/.claude/skills/bonsai

   0GitHub starsstable
9. 9

   lazy-cat

   Skill

   ActiveLast commit 2 months ago · 2026-06-11

   Claude Code skills for developers who code like cats — never more effort than the problem requires.

   JavaScriptLicense: MIT

   • ai-productivity
   • anthropic
   • cat
   • claude
   • claude-code

   githubcreated 3 months agomeasured growthOpen source ↗

   Install git clone https://github.com/albertobarnabo/lazy-cat ~/.claude/skills/lazy-cat

   50GitHub starsstable
10. 10

    skill-manager

    Skill

    ActiveLast commit 1 day ago · 2026-09-06

    Automatically detect and disable irrelevant Claude Code skills per project to save tokens and streamline your tech workflow.

    PythonLicense: MIT

    • agents
    • ai-agents
    • antigravity
    • claude
    • claude-code-plugins

    githubcreated 6 months agomeasured growthOpen source ↗

    Install git clone https://github.com/mrdenox109-nyx/skill-manager ~/.claude/skills/skill-manager

    5GitHub starsstable
11. 11

    super-token-saver

    Skill

    ActiveLast commit today · 2026-09-06

    Restore prior Claude Code AND Codex sessions with zero LLM calls. Cross-tool session handoff, cache-expiry prevention, real cost dashboard. One plugin, both hosts.

    JavaScriptLicense: Apache-2.0

    • anthropic-api
    • api-cost
    • billing-analytics
    • cache-management
    • claude-code

    githubcreated 5 months agomeasured growthOpen source ↗

    Install /plugin marketplace add ww-w-ai/super-token-saver

    31GitHub starsstable
12. 12

    claude-rolling-context

    Skill

    ActiveLast commit 2 days ago · 2026-09-04

    Rolling context compression for Claude Code — never hit the context wall. Auto-compresses old messages while keeping recent context verbatim. Zero config, zero latency. Works as a Claude Code plugin.

    PythonLicense: MIT

    • ai-agent
    • ai-coding
    • anthropic
    • claude
    • claude-code

    githubcreated 6 months agomeasured growthOpen source ↗

    Install /plugin marketplace add NodeNestor/claude-rolling-context

    31GitHub starsstable
13. 13

    claude-code-eco

    Skill

    ActiveLast commit 21 days ago · 2026-08-16

    Eco mode for Claude Code. /eco: -31% to -73% output tokens with critical findings intact; /eco-max: up to -75% with lowered effort. Measured hardest on Claude Fable 5 (fable5), deep-studied on Sonnet 5, works on Opus 4.8 too. We publish our…

    JavaScriptLicense: MIT

    • ai-agents
    • anthropic
    • claude
    • claude-ai
    • claude-code

    githubcreated 2 months agomeasured growthOpen source ↗

    Install /plugin marketplace add sup3x/claude-code-eco

    33GitHub starsstable
14. 14

    pdf-text-router

    Skill

    ActiveLast commit 8 days ago · 2026-08-29

    A Claude Code hook that routes each Read on a PDF to the path that actually works: text layer to UTF-8 text, scans to vision, and neither one through poppler.

    PythonLicense: MIT

    • claude-code
    • claude-code-hooks
    • claude-code-plugin
    • pdf
    • poppler

    githubcreated 12 days agonewmeasured growthOpen source ↗

    Install /plugin marketplace add WatsonTsai/pdf-text-router

    7GitHub starsstable
15. 15

    io.github.pgalyen1987/gate402-mcp

    MCP

    ActiveLast commit 35 days ago · 2026-08-03

    Pay-per-call agent APIs over x402: web scraping, token compression, and semantic cache.

    JavaScriptLicense: MIT

    mcpcreated 2 months agomeasured growthOpen source ↗

    Install claude mcp add gate402-mcp -- npx gate402-mcp

    2GitHub starsstable
16. 16

    unclog

    MCP

    DormantLast commit 4 months ago · 2026-04-25

    Audit MCP servers, skills, and CLAUDE.md bloat eating your Claude Code context window.

    PythonLicense: MIT

    • claude
    • claude-code
    • claude-code-plugin
    • cli
    • context-window

    githubcreated 4 months agomeasured growthOpen source ↗

    35GitHub starsstable
17. 17

    io.github.RudrenduPaul/tokentrust

    MCP

    ActiveLast commit 3 days ago · 2026-09-03

    Verifies token/cost savings claimed by AI context-reduction proxies via MCP tools.

    TypeScriptLicense: Apache-2.0

    mcpcreated 57 days agomeasured growthOpen source ↗

    Install claude mcp add tokentrust -- uvx tokentrust-cli

    0GitHub starsstable
18. 18

    MCP Surface Lint

    MCP

    ActiveLast commit 3 days ago · 2026-09-03

    Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

    TypeScript

    mcpcreated 55 days agomeasured growthOpen source ↗

    Remote server, to be declared in the MCP configuration https://mcplint-web.vercel.app/api/mcp

    0GitHub starsstable
19. 19

    token-reducer

    Skill

    DormantLast commit 4 months ago · 2026-05-02

    ⚡ Cut Claude token usage by 90%+ — free, open-source, local-first context compression for Claude Code. Hybrid RAG (BM25 + ONNX vectors), AST chunking, reranking. No API needed.

    PythonLicense: MIT

    • ai-tools
    • bm25
    • claude-code
    • claude-code-plugin
    • context-compression

    githubcreated 5 months agomeasured growthOpen source ↗

    Install /plugin marketplace add Madhan230205/token-reducer

    44GitHub starsstable
20. 20

    io.github.alibaizhanov/densely

    MCP

    ActiveLast commit 24 days ago · 2026-08-13

    Lossless context compression: 2-8x fewer tokens, byte-exact recovery, search inside payloads

    PythonLicense: MIT

    mcpcreated 30 days agomeasured growthOpen source ↗

    Install claude mcp add densely -- uvx densely

    6GitHub starsstable
21. 21

    context-graph-compressor

    Skill

    DormantLast commit 3 months ago · 2026-05-30

    Convert long AI conversations into portable conversation state graphs for LLM handoffs.

    License: MIT

    • age
    • agent
    • ai
    • chatgpt
    • claude-ai

    githubcreated 3 months agomeasured growthOpen source ↗

    Install git clone https://github.com/Adityapal67/context-graph-compressor ~/.claude/skills/context-graph-compressor

    35GitHub starsstable
22. 22

    ratel

    MCP

    ActiveLast commit 2 days ago · 2026-09-04

    Context engineering for AI agents. ~80% fewer tokens. Fix tool overload. Skills and memory with in-process BM25 and semantic retrieval. Progressive Disclosure. No vector DB.

    TypeScriptLicense: MIT

    • accuracy
    • agents
    • claude-skills
    • context
    • harness

    githubcreated 9 months agomeasured growthOpen source ↗

    433GitHub starsstable
23. 23

    cc-hud

    Skill

    ActiveLast commit 42 days ago · 2026-07-27

    Compact Claude Code statusline — zero-dependency, crash-free on Windows

    TypeScriptLicense: MIT

    • claude
    • claude-code
    • claude-code-plugin
    • context-window
    • deepseek

    githubcreated 5 months agomeasured growthOpen source ↗

    Install /plugin marketplace add WaterTian/cc-hud

    8GitHub starsstable
24. 24

    usage-aware-claude-statusline

    CLI

    ActiveLast commit 2 months ago · 2026-06-29

    Usage-aware status line for Claude Code: session & weekly rate-limit gauges with reset countdowns and a precise context-window meter, plus tokens, git & weather. Template-driven and extensible — set it up by chatting with Claude or via a…

    Python

    • ccusage-alternative
    • claude-code
    • claude-code-skills
    • claude-code-statusline
    • context-window

    githubcreated 2 months agomeasured growthOpen source ↗

    1GitHub starsstable
25. 25

    io.github.eralpozcan/vision-squeezer

    MCP

    ActiveLast commit 47 days ago · 2026-07-22

    Cut vision-LLM token costs by snapping images to tile boundaries — Claude, GPT, Gemini, Llama, Qwen

    ↓ 53 downloads/weekRustLicense: NOASSERTION

    mcpcreated 3 months agomeasured growthOpen source ↗

    Install claude mcp add vision-squeezer -- npx vision-squeezer

    2GitHub starsstable