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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96 entries in this view.

Tool ranking

Mixed ranking: measured growth takes priority; entries without two snapshots are estimated. 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

    20 power-user skills for Claude Code: session memory and consolidation, context compression, multi-agent orchestration, adversarial bug hunting, security review, calibrated estimation and decision archaeology. Drop-in SKILL.md files. Built…

    License: MIT
    • agent-skills
    • ai-agent
    • ai-coding
    • ai-developer-tools
    • ai-workflow

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/irfad7/claude-power-skills ~/.claude/skills/claude-power-skills

    4GitHub starsstable
  2. 2

    Skill
    Dormant

    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

    githubmeasured growthOpen source ↗

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

    26GitHub starsstable
  3. 3

    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
  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

    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
    • 6

      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
    • 7

      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
    • 8

      MCP
      Active

      MCP server and proxy that compresses LLM prompts, tool output, and replies to cut token cost.

      ↓ 171 downloads/weekRustLicense: MPL-2.0

        mcpmeasured growthOpen source ↗

        Install claude mcp add llmtrim -- npx @llmtrim/cli

        222GitHub starsstable
      • 9

        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
        • 10

          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
        • 11

          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
        • 12

          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
        • 13

          MCP
          UnknownLast commit: unavailable

          AI agent token-cost telemetry + 429 prediction. Per-agent attribution, anomaly + routing + quota.

          mcpmeasured growthOpen source ↗

          Install claude mcp add openclaw-cost-tracker-mcp -- uvx openclaw-cost-tracker-mcp

          129downloads over 7 daysstable
        • 14

          Skill
          Dormant

          Claude Code plugin — inventory all your installed skills, check structure, and find updates. Free, zero dependencies.

          JavaScriptLicense: MIT
          • ai-tools
          • anthropic
          • audit
          • claude
          • claude-code

          githubestimated momentumOpen source ↗

          Install /plugin marketplace add VersoXBT/skill-manager

          6GitHub stars—

        Learning resources

        Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

        1. 1

          SUMMARY-md

          Skill
          ActiveOpen source ↗

          A cheat sheet that stops AI agents from scanning your whole repo and saves you tokens.

          License: CC0-1.0
          • agent-context
          • agent-tools
          • ai-agents
          • ai-coding
          • claude-code
          github

          Install git clone https://github.com/toshon-jennings/SUMMARY-md ~/.claude/skills/SUMMARY-md

          Resourcemeasured growth
          0GitHub starsstable
        2. 2

          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

        Listed without a public metric

        Mixed ranking: measured growth takes priority; entries without two snapshots are estimated. 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

          MCP
          UnknownLast commit: unavailable

          Semantic context compression and cognitive memory layer for LLM swarms.

          mcpmetric not publishedOpen source ↗

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

          —No public metric provided
        2. 2

          MCP
          UnknownLast commit: unavailable

          MCP server for Skim code transformation. Compresses code 60-95% for LLM context optimization.

          mcpmetric not publishedOpen source ↗

          Install claude mcp add skim-mcp-server -- npx skim-mcp-server

          —No public metric provided
        3. 3

          MCP
          UnknownLast commit: unavailable

          Cut LLM token costs: count tokens, estimate cost, slim prompts, and pick the cheapest capable model.

          mcpmetric not publishedOpen source ↗

          Install claude mcp add mcp-token-optimizer -- npx mcp-token-optimizer

          —No public metric provided
        4. 4

          MCP
          UnknownLast commit: unavailable

          LLM caching proxy (x402 USDC on Base) - exact + semantic cache. Free health.

          mcpmetric not publishedOpen source ↗

          Remote server, to be declared in the MCP configuration https://cache.api.ainode.tech/mcp

          —No public metric provided
        5. 5

          MCP
          UnknownLast commit: unavailable

          Pre-injection context compression for coding agents. Zero LLM calls, zero telemetry, offline-safe.

          mcpmetric not publishedOpen source ↗

          —No public metric provided