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

   rosetta

   Other

   DormantLast commit 3 months ago · 2026-05-12

   Translate any language to English before Claude processes it. ~49% token savings combined with caveman.

   PythonLicense: MIT

   • claude-code
   • claude-code-skill
   • developer-tools
   • llm
   • multilingual

   githubcreated 3 months agomeasured growthOpen source ↗

   2GitHub starsstable
2. 2

   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
3. 3

   agentic-os

   Skill

   ActiveLast commit 2 days ago · 2026-09-01

   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

   githubcreated 4 months agomeasured growthOpen source ↗

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

   155GitHub stars+8 (+5.4 %)
4. 4

   skills-janitor

   MCP

   ActiveLast commit 24 days ago · 2026-08-11

   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

   githubcreated 5 months agomeasured growthOpen source ↗

   115GitHub stars+1 (+0.88 %)
5. 5

   token-efficiency

   Skill

   ActiveLast commit 2 months ago · 2026-06-17

   A Claude Code plugin that shows exactly where your AI coding session wasted tokens — and how to fix it. Flags waste, never quality. Runs locally.

   PythonLicense: MIT

   • agent-skills
   • anthropic
   • claude-code
   • claude-code-plugin
   • claude-code-skills

   githubcreated 2 months agomeasured growthOpen source ↗

   Install /plugin marketplace add Jimmynycu/token-efficiency

   2GitHub starsstable
6. 6

   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
7. 7

   cc-hud

   Skill

   ActiveLast commit 39 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
8. 8

   SecureContext

   MCP

   ActiveLast commit 4 days ago · 2026-08-30

   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

   githubcreated 5 months agomeasured growthOpen source ↗

   8GitHub starsstable
9. 9

   claude-code-eco

   Skill

   ActiveLast commit 19 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
10. 10

    concise

    Skill

    DormantLast commit 4 months ago · 2026-04-08

    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

    githubcreated 4 months agomeasured growthOpen source ↗

    Install /plugin marketplace add o4f6bgpac3/concise

    11GitHub stars+2 (+22.2 %)
11. 11

    contextforge

    Skill

    DormantLast commit 3 months ago · 2026-06-01

    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

    githubcreated 3 months agomeasured growthOpen source ↗

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

    1GitHub starsstable
12. 12

    claude-context-optimizer

    Skill

    ActiveLast commit 2 days ago · 2026-09-01

    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

    githubcreated 5 months agomeasured growthOpen source ↗

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

    105GitHub stars+4 (+4.0 %)
13. 13

    super-token-saver

    Skill

    ActiveLast commit today · 2026-09-03

    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 4 months agomeasured growthOpen source ↗

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

    31GitHub starsstable
14. 14

    opencode-skill

    Skill

    ActiveLast commit 58 days ago · 2026-07-07

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

    Python

    • claude
    • claude-skills
    • delegation
    • opencode
    • orchestration

    githubcreated 3 months agomeasured growthOpen source ↗

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

    17GitHub stars+1 (+6.2 %)
15. 15

    io.github.dawitlabs/capsule

    MCP

    ActiveLast commit 2 months ago · 2026-07-03

    Compact, source-linked context packs that reduce token waste for coding agents.

    TypeScriptLicense: MIT

    mcpcreated 2 months agomeasured growthOpen source ↗

    Install claude mcp add capsule -- npx capsulectx

    4GitHub starsstable
16. 16

    claude-rolling-context

    Skill

    ActiveLast commit today · 2026-09-03

    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
17. 17

    claude-handoff-revive

    Skill

    ActiveLast commit 2 months ago · 2026-06-25

    Resume Claude Code work after rate/usage/context limits without replaying the prior transcript. Auto-saves at 90%/95% usage. Plugin-installable, 10 languages.

    PowerShellLicense: MIT

    • checkpoint
    • claude-code
    • claude-code-plugin
    • claude-code-skills
    • context

    githubcreated 3 months agomeasured growthOpen source ↗

    Install /plugin marketplace add sofumel/claude-handoff-revive

    6GitHub starsstable
18. 18

    claude-night-market

    Skill

    ActiveLast commit today · 2026-09-03

    23 Claude Code plugins: TDD enforcement hooks, git/PR workflows, spec-driven development, code review, project lifecycle, fix-from-error, maintenance automation, context optimization, research, and multi-LLM delegation. 186 skills, 128…

    PythonLicense: MIT

    • ai-agents
    • architecture-patterns
    • awesome-claude-code
    • awesome-claude-skills
    • claude-agents

    githubcreated 9 months agomeasured growthOpen source ↗

    Install git clone https://github.com/athola/claude-night-market ~/.claude/skills/claude-night-market

    335GitHub stars+3 (+0.90 %)
19. 19

    PromptCompressor-skill

    Skill

    ActiveLast commit 31 days ago · 2026-08-04

    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

    githubcreated 32 days agomeasured growthOpen source ↗

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

    1GitHub starsstable
20. 20

    claude-power-skills

    Skill

    ActiveLast commit 42 days ago · 2026-07-24

    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

    githubcreated 5 months agomeasured growthOpen source ↗

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

    4GitHub starsstable
21. 21

    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 5 months agomeasured growthOpen source ↗

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

    26GitHub starsstable
22. 22

    pith

    Skill

    DormantLast commit 4 months ago · 2026-05-06

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

    PythonLicense: MIT

    • anthropic
    • claude-code
    • claude-code-plugin
    • llm-tools
    • token-optimization

    githubcreated 4 months agomeasured growthOpen source ↗

    Install /plugin marketplace add abhisekjha/pith

    98GitHub starsstable
23. 23

    claude-code-optimizer

    CLI

    DormantLast commit 5 months ago · 2026-03-30

    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

    githubcreated 5 months agomeasured growthOpen source ↗

    9GitHub starsstable
24. 24

    harnessay

    Skill

    ActiveLast commit 9 days ago · 2026-08-26

    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

    githubcreated 10 days agonewmeasured growthOpen source ↗

    Install /plugin marketplace add nks0614/harnessay

    5GitHub stars+2 (+66.7 %)
25. 25

    senior-fable

    Skill

    ActiveLast commit 2 days ago · 2026-09-02

    Tech-lead orchestration for Claude Code — the top-tier model (Fable) keeps architecture & decisions, cheap subagents (Sonnet/Opus) do the routine and the digging. Save tokens without losing quality.

    License: MIT

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

    githubcreated 2 months agomeasured growthOpen source ↗

    Install /plugin marketplace add AndyShaman/senior-fable

    25GitHub stars+2 (+8.7 %)