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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43 entries in this view.

Tool ranking

Ranked by known GitHub stars, highest first; archived repositories come after maintained repositories. 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

    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

    10GitHub stars+1 (+11.1 %)
  2. 2

    Skill
    Active

    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

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add sakebomb/mcp-recall

    8GitHub starsstable
  3. 3

    Skill
    Active

    🪒 YAGNI enforcement at the harness level, nudges toward the simplest solution and gates against unnecessary dependencies, file sprawl, and unchecked build growth.

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

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add V-Songbird/razor

    8GitHub stars+1 (+14.3 %)
  4. 4

    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
  5. 5

    Skill
    Active

    A production-ready Claude Code setup. Global CLAUDE.md, coding rules, per-project memory, and token optimization.

    ShellLicense: MIT
    • ai-agents
    • claude
    • claude-code
    • claude-code-plugin
    • context-engineering

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add janmaaarc/basecamp

    7GitHub starsstable
  6. 6

    Skill
    Active

    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

    githubmeasured growthOpen source ↗

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

    7GitHub starsstable
  7. 7

    MCP
    Active

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

    PythonLicense: MIT

      mcpmeasured growthOpen source ↗

      Install claude mcp add densely -- uvx densely

      6GitHub starsstable
    • 8

      Skill
      Active

      Profile Claude Code context, discover repeated workflows, and regression-test your skills. Local-only, zero-dependency.

      PythonLicense: MIT
      • agent-skills
      • anthropic
      • claude-code
      • claude-code-plugin
      • claude-code-plugins

      githubmeasured growthOpen source ↗

      Install /plugin marketplace add nks0614/harnessay

      5GitHub stars+2 (+66.7 %)
    • 9

      Skill
      Active

      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

      githubmeasured growthOpen source ↗

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

      5GitHub starsstable
    • 10

      Skill
      Active

      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

      githubmeasured growthOpen source ↗

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

      3GitHub starsstable
    • 11

      Agent
      Active

      Agent context compressor and memory persistent orchestration

      TypeScriptLicense: Apache-2.0
      • a2a-protocol
      • agent-framework
      • ai
      • ai-agents-framework
      • ai-tools

      githubmeasured growthOpen source ↗

      2GitHub starsstable
    • 12

      Skill
      Active

      Claude Code skill: caveman-style token efficiency, spoken with a real Spanish regional accent

      JavaScriptLicense: MIT
      • agent-skills
      • ai-agents
      • anthropic
      • claude-code
      • claude-code-plugin

      githubmeasured growthOpen source ↗

      Install /plugin marketplace add Mun1to/SpanishCaveMan

      2GitHub starsstable
    • 13

      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
    • 14

      MCP
      Active

      Context optimization for LLM agents: tool registry, result masking, budgeting, compaction.

      RustLicense: NOASSERTION

        mcpmeasured growthOpen source ↗

        Install claude mcp add distil -- npx @munhq/distil

        1GitHub starsstable
      • 15

        Skill
        Active

        Cut Claude Code token costs by delegating bulk LLM work to cheap models. 600+ models via NanoGPT, OpenRouter, Groq or local Ollama — batched, resumable, with real per-call cost tracking.

        PythonLicense: MIT
        • ai-agents
        • batch-processing
        • cheap-llm
        • claude-code
        • claude-code-agents

        githubmeasured growthOpen source ↗

        Install /plugin marketplace add bicced/sidequest

        1GitHub starsstable
      • 16

        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
        • 17

          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

          Learning resources

          Ranked by known GitHub stars, highest first; archived repositories come after maintained repositories. These resources remain available separately and do not take part in the main tool ranking.

          1. 1

            mcp-agent-skills-hub

            MCP
            ActiveOpen source ↗

            Molavi Agent Skills: Curated AI agent skills and MCP configs for Antigravity, Cursor, Codex & Claude — by Taghi Molavi

            JavaScriptLicense: MIT
            • agentic-workflows
            • ai-agents
            • ai-skills
            • antigravity
            • awesome-list
            githubResourcemeasured growth
            8GitHub starsstable