Token efficiency: tools for developers

Tools that reduce token costs, compress context or cache LLM requests. An entry can appear under several use cases when its topics or description provide several explicit signals.

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90 entries in this view.

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

    Skill
    Active

    Governance framework for AI coding agents. It runs them through a five-step workflow (plan, build, review, test, ship) where no step counts as done without evidence. Drop-in rules and guardrails for Claude Code, Codex, Cursor, Copilot, and…

    PythonLicense: MIT
    • agent-framework
    • agent-orchestration
    • agentic-development
    • agents-md
    • ai-agent

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/KbWen/agentic-os ~/.claude/skills/agentic-os

    155GitHub stars+8 (+5.4 %)
  2. 2

    MCP
    Active

    Persistent memory + security layer for Claude Code (MCP plugin). Agents remember your project across sessions (~87% fewer context tokens), every tool call lands in a tamper-evident HMAC audit chain, and skills are AST-scanned +…

    TypeScriptLicense: MIT
    • agent-security
    • ai-agent-memory
    • ai-agents
    • audit-trail
    • claude-code

    githubmeasured growthOpen source ↗

    8GitHub starsstable
  3. 3

    Skill
    Dormant

    Say more with less. Claude Code skill/plugin that cuts ~60-70% of output tokens while keeping natural, readable English.

    ShellLicense: MIT
    • ai-coding
    • claude-code
    • claude-code-plugin
    • claude-code-plugins
    • claude-code-skill

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add o4f6bgpac3/concise

    10GitHub stars+2 (+25.0 %)
  4. 4

    CLI
    Dormant

    Optimize Claude Code token usage — 22 skills, 8 hooks, 6 rules. One npm install. Zero manual steps. Cut costs by 67%.

    ShellLicense: MIT
    • ai
    • ai-coding
    • anthropic
    • claude
    • claude-code

    githubmeasured growthOpen source ↗

    9GitHub starsstable
  5. 5

    Skill
    Active

    对标 claude-hud 核心功能，控制在 7 行以内更轻量。内置 13 个国产大模型平台用量查询 (智谱 GLM / MiniMax / DeepSeek / Kimi / StepFun / SiliconFlow 等)，第三方代理用户也能实时看到额度消耗。

    TypeScriptLicense: MIT
    • anthropic
    • claude
    • claude-code
    • claude-code-plugin
    • cli

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add zander-zyx/claude-mini-hud

    9GitHub starsstable
  6. 6

    MCP
    Active

    Context GC for LLM agents: offload large tool outputs and recall them to save tokens.

    PythonLicense: Unlicense

      mcpmeasured growthOpen source ↗

      Install claude mcp add lethe -- uvx lethe-llm-context

      0GitHub starsstable
    • 7

      Skill
      Active

      Lossless context compression plugin for Claude Code & OpenCode.

      TypeScriptLicense: BSD-3-Clause
      • anthropic
      • chatgpt
      • claude
      • claude-code
      • claude-code-plugin

      githubmeasured growthOpen source ↗

      Install /plugin marketplace add aerovato/magic-compact

      146GitHub stars+1 (+0.69 %)
    • 8

      Skill
      Dormant

      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

      githubmeasured growthOpen source ↗

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

      0GitHub starsstable
    • 9

      Skill
      Active

      Content-aware output compression for AI coding assistants. 36 specialized processors cut CLI output tokens by 60-99% (git, pytest, npm, terraform, kubectl, docker, and more) without losing errors, diffs, or stack traces.

      PythonLicense: Apache-2.0
      • agentic-ai
      • ai-coding-assistant
      • claude-code
      • claude-code-plugin
      • cli-tools

      githubmeasured growthOpen source ↗

      Install /plugin marketplace add ppgranger/token-saver

      142GitHub stars+2 (+1.4 %)
    • 10

      MCP
      Active

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

      TypeScript

        mcpmeasured growthOpen source ↗

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

        0GitHub starsstable
      • 11

        MCP
        Active

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

        TypeScriptLicense: Apache-2.0

          mcpmeasured growthOpen source ↗

          Install claude mcp add tokentrust -- uvx tokentrust-cli

          0GitHub starsstable
        • 12

          Skill
          Active

          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

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add 0xhimanshu/governor

          133GitHub stars+3 (+2.3 %)
        • 13

          Other
          Active

          Find the ghost tokens. Fix them. Survive compaction. Avoid context quality decay.

          Python
          • agentskills
          • claude-code
          • claude-code-skill
          • claude-plugin
          • context-engineering

          githubmeasured growthOpen source ↗

          2 122GitHub stars+108 (+5.4 %)
        • 14

          Skill
          Active

          Claude Code skill — delegate coding tasks to Mistral Vibe, supervise via git diff & save 50-90% Claude token usage

          Shell
          • claude
          • claude-ai
          • claude-ai-skills
          • claude-code
          • claude-skill

          githubmeasured growthOpen source ↗

          Install git clone https://github.com/pcx-wave/vibe-skill ~/.claude/skills/vibe-skill

          117GitHub starsstable
        • 15

          MCP
          Active

          Tinder for your Claude Code skills, subagents and MCP servers. Swipe away what wastes context, scan for prompt injection, get honest token costs. Fixes what it finds and actually deletes. Zero dependencies, Claude Code + Codex.

          ShellLicense: MIT
          • agent-skills
          • ai-agents
          • claude
          • claude-code
          • claude-code-marketplace

          githubmeasured growthOpen source ↗

          115GitHub stars+1 (+0.88 %)
        • 16

          Skill
          Active

          Claude Code plugin that tracks token usage, identifies wasted context, and saves 30-50% on API costs. Heatmaps, ROI reports, budget alerts, efficiency scores, git-aware suggestions — all local, zero config.

          JavaScriptLicense: MIT
          • ai-tools
          • anthropic
          • claude-code
          • claude-code-plugin
          • cli-plugin

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add egorfedorov/claude-context-optimizer

          103GitHub stars+6 (+6.2 %)
        • 17

          Skill
          Dormant

          Pith is the hook that makes Claude Code sessions last 3x longer.

          PythonLicense: MIT
          • anthropic
          • claude-code
          • claude-code-plugin
          • llm-tools
          • token-optimization

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add abhisekjha/pith

          98GitHub starsstable
        • 18

          Skill
          Active

          A skill that shrink noisy log/output 60-90% before read — filter, group, dedupe, truncate. Cut token, cut cost, keep signal. By Dhayalan (aka Joy).

          PythonLicense: MIT
          • claude
          • claude-ai
          • claude-code
          • claude-code-plugin
          • claude-code-skill

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add Da-ya7/PromptCompressor-skill

          1GitHub starsstable
        • 19

          Skill
          Dormant

          A Claude Code skill for web report decks — richer ECharts charts, one file per slide (edit one page, save tokens), and complex structure diagrams. 16:9 & vertical, PDF/image export.网页版 PPT 汇报的 Claude Code skill：ECharts 把数据画得更好看、每页一个文件改一页省…

          HTMLLicense: MIT
          • ai
          • anthropic
          • claude
          • claude-code
          • claude-skills

          githubmeasured growthOpen source ↗

          Install git clone https://github.com/myunwang/ppt-report-skills ~/.claude/skills/ppt-report-skills

          81GitHub starsstable
        • 20

          CLI
          Active

          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

          githubmeasured growthOpen source ↗

          1GitHub starsstable
        • 21

          Skill
          Active

          Agent Dashboard: Visualization and analytics for Sessions and Quota Usage. Track, analyze, and optimize token usage across providers with heatmaps, cost tracking, token counting and quota resets..

          PythonLicense: MIT
          • agent
          • analytics
          • anthropic
          • claude-code
          • claude-code-plugin

          githubmeasured growthOpen source ↗

          Install /plugin marketplace add JingbiaoMei/Tokdash

          67GitHub stars+3 (+4.7 %)
        • 22

          Skill
          Dormant

          Agent context gate for Codex, Claude Code, Copilot, MCP, Cursor, Cline, Gemini and Windsurf repos

          TypeScript
          • agent-readiness
          • ai-security
          • claude-agents
          • claude-code
          • cli

          githubmeasured growthOpen source ↗

          Install git clone https://github.com/grnbtqdbyx-create/contextforge ~/.claude/skills/contextforge

          1GitHub starsstable
        • 23

          Skill
          Dormant

          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

          githubmeasured growthOpen source ↗

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

          65GitHub starsstable
        • 24

          CLI
          Active

          Measure and shrink the token cost of Claude Code skills, tier by tier: the always-on system-prompt tax, the per-invocation body, and on-demand references, each priced at the rate it is actually billed.

          PythonLicense: MIT
          • claude
          • claude-code
          • claude-code-skills
          • cli
          • cost-optimization

          githubmeasured growthOpen source ↗

          1GitHub starsstable
        • 25

          MCP
          Active

          Context compression plugin for Claude Code. Automatically trims large tool output—JSON, YAML, stack traces, and logs—before it enters the context window.

          TypeScriptLicense: MIT
          • claude-code
          • claude-code-plugin
          • context-compression
          • context-window
          • developer-tooling

          githubmeasured growthOpen source ↗

          64GitHub starsstable