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.

90 entries in this view.

Tool ranking

Ranked by normalized popularity 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
rtk
CLI
ActiveLast commit today · 2026-09-02
CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies
RustLicense: Apache-2.0
- agentic-coding
- ai-coding
- anthropic
- claude-code
- cli
githubcreated 7 months agomeasured growthOpen source ↗
78 349GitHub stars+703 (+0.91 %)
2
headroom
MCP
ActiveLast commit today · 2026-09-02
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
PythonLicense: Apache-2.0
- agent
- ai
- anthropic
- claude-code
- compression
githubcreated 7 months agomeasured growthOpen source ↗
68 629GitHub stars+784 (+1.2 %)
3
token-optimizer
Other
ActiveLast commit 1 day ago · 2026-09-01
Find the ghost tokens. Fix them. Survive compaction. Avoid context quality decay.
Python
- agentskills
- claude-code
- claude-code-skill
- claude-plugin
- context-engineering
githubcreated 6 months agomeasured growthOpen source ↗
2 122GitHub stars+108 (+5.4 %)
4
ratel
MCP
ActiveLast commit 1 day ago · 2026-09-01
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 stars+5 (+1.2 %)
5
claude-night-market
Skill
ActiveLast commit 2 days ago · 2026-08-31
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
333GitHub stars+2 (+0.60 %)
6
llmtrim
MCP
ActiveLast commit 16 days ago · 2026-08-17
MCP server and proxy that compresses LLM prompts, tool output, and replies to cut token cost.
↓ 171 downloads/weekRustLicense: MPL-2.0
mcpcreated 2 months agomeasured growthOpen source ↗
Install claude mcp add llmtrim -- npx @llmtrim/cli
222GitHub stars+6 (+2.8 %)
7
agentic-os
Skill
ActiveLast commit 1 day 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 %)
8
magic-compact
Skill
ActiveLast commit 10 days ago · 2026-08-24
Lossless context compression plugin for Claude Code & OpenCode.
TypeScriptLicense: BSD-3-Clause
- anthropic
- chatgpt
- claude
- claude-code
- claude-code-plugin
githubcreated 2 months agomeasured growthOpen source ↗
Install /plugin marketplace add aerovato/magic-compact
146GitHub stars+1 (+0.69 %)
9
token-saver
Skill
ActiveLast commit 16 days ago · 2026-08-18
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
githubcreated 6 months agomeasured growthOpen source ↗
Install /plugin marketplace add ppgranger/token-saver
142GitHub stars+2 (+1.4 %)
10
governor
Skill
ActiveLast commit 2 months ago · 2026-06-20
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 stars+3 (+2.3 %)
11
vibe-skill
Skill
ActiveLast commit 22 days ago · 2026-08-11
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
githubcreated 3 months agomeasured growthOpen source ↗
Install git clone https://github.com/pcx-wave/vibe-skill ~/.claude/skills/vibe-skill
117GitHub starsstable
12
skills-janitor
MCP
ActiveLast commit 23 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 %)
13
claude-context-optimizer
Skill
ActiveLast commit 1 day 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
103GitHub stars+6 (+6.2 %)
14
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
15
ppt-report-skills
Skill
DormantLast commit 3 months ago · 2026-06-03
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
githubcreated 3 months agomeasured growthOpen source ↗
Install git clone https://github.com/myunwang/ppt-report-skills ~/.claude/skills/ppt-report-skills
81GitHub starsstable
16
Tokdash
Skill
ActiveLast commit 1 day ago · 2026-09-01
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
githubcreated 6 months agomeasured growthOpen source ↗
Install /plugin marketplace add JingbiaoMei/Tokdash
67GitHub stars+3 (+4.7 %)
17
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
18
toonify-mcp
MCP
ActiveLast commit 17 days ago · 2026-08-16
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
githubcreated 8 months agomeasured growthOpen source ↗
64GitHub starsstable
19
RustAPI
Library
ActiveLast commit 11 days ago · 2026-08-22
A high-performance, ergonomic web framework for Rust with native AI/LLM support.
RustLicense: Apache-2.0
- ai-native
- api-framework
- async
- backend
- developer-tools
githubcreated 8 months agoestimated momentumOpen source ↗
61GitHub stars—
20
webfetch
Skill
ActiveLast commit 42 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
21
skillreaper
MCP
ActiveLast commit 3 days ago · 2026-08-30
Cut context bloat in your AI-agent stack: find and safely prune unused skills, MCP servers and subagents from real transcript evidence
GoLicense: MIT
- agent-skills
- ai-agents
- anthropic
- claude-code
- claude-code-plugin
githubcreated 2 months agomeasured growthOpen source ↗
55GitHub stars+1 (+1.9 %)
22
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
23
hush
Skill
ActiveLast commit 1 day ago · 2026-09-01
🤫 Token-lean sessions at the harness level. An easy to grasp output style, output-shrinking hooks, and log compression cut both input and output tokens.
JavaScriptLicense: MIT
- agent-skills
- ai
- anthropic
- claude
- claude-code
githubcreated 58 days agomeasured growthOpen source ↗
Install /plugin marketplace add V-Songbird/hush
47GitHub stars+4 (+9.3 %)
24
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

Learning resources

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

1
outsourcerer
Skill
ActiveLast commit 1 day ago · 2026-09-01Open source ↗
Make the most out of your subscriptions. Delegate work to other harnesses and models, while keeping your main session the orchestrator. Nothing new to learn. Keep working like you do, but better.
Shell
- agent-skills
- agentic-workflow
- claude-code
- codex
- fable
github
Install git clone https://github.com/alexgreensh/outsourcerer ~/.claude/skills/outsourcerer
active 1 day agocreated 54 days agoResourcemeasured growth
142GitHub stars+3 (+2.2 %)

Token efficiency: tools for developers

Use case

Activity

Sort by

Tool ranking

rtk

headroom

token-optimizer

ratel

claude-night-market

llmtrim

agentic-os

magic-compact

token-saver

governor

vibe-skill

skills-janitor

claude-context-optimizer

pith

ppt-report-skills

Tokdash

Spiderbrain-V3

toonify-mcp

RustAPI

webfetch

skillreaper

lazy-cat

hush

token-reducer

Learning resources

outsourcerer