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Context Budget · loulanyue | DecimalAI

agent toolingby loulanyue

Context Budget

loulanyue/context-budget

Source loulanyue/awesome-claude-notes ↗License MIT

Audits Claude Code context window consumption across agents, skills, MCP servers, and rules. Identifies bloat, redundant components, and produces prioritized token-savings recommendations.

SkillScore86Maintained

Automatic

AI Engineer pack

Last verified 8/21/2026

What it changes

Passed 18 of 21 test cases with the skill, and 9 of 21 without it.

Without skill41%

With skill86%

Checks it passed that the model alone missed

Estimates the token count as 1,300 tokens
Estimates the token footprint as 2,000 tokens
Estimates the schema overhead at 7,000 tokens

and 8 more in the full report

10 fixed9 passed either way3 still failing0 broke

Pass-rate lift: +45 pp
Tokens: +18%
Agent turns: 0%
Response time: -57%

Model gemini-3.6-flashMeasured 8/21/2026v719 of 22 cases passed with skill · 21 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/loulanyue-context-budget/SKILL.md https://app.decimal.ai/s/loulanyue-context-budget/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add loulanyue-context-budget, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/loulanyue-context-budget/ and pins it in .decimal/skills.lock

decimalai skills add loulanyue-context-budget

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/loulanyue-context-budget/SKILL.md https://app.decimal.ai/s/loulanyue-context-budget/SKILL.md

Raw file: /s/loulanyue-context-budget/SKILL.md ↗ · machine-readable summary at /s/loulanyue-context-budget.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

I have a dense JSON file containing 8,000 characters with no prose commentary. According to token estimation guidelines for code-heavy files, how many tokens does this file consume?

What was checked, without and with the skill
Checked	Without skill	With skill
Estimates the token footprint as 2,000 tokens	Missed	Passed

case-05 · gemini-3.6-flash · 8/21/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md136 linessingle file

Context Budget

Analyze token overhead across every loaded component in a Claude Code session and surface actionable optimizations to reclaim context space.

When to Use

Session performance feels sluggish or output quality is degrading
You've recently added many skills, agents, or MCP servers
You want to know how much context headroom you actually have
Planning to add more components and need to know if there's room
Running /context-budget command (this skill backs it)

How It Works

Phase 1: Inventory

Scan all component directories and estimate token consumption:

Agents (agents/*.md)

Count lines and tokens per file (words × 1.3)
Extract description frontmatter length
Flag: files >200 lines (heavy), description >30 words (bloated frontmatter)

Skills (skills/*/SKILL.md)

Count tokens per SKILL.md
Flag: files >400 lines
Check for duplicate copies in .agents/skills/ — skip identical copies to avoid double-counting

Rules (rules/**/*.md)

Count tokens per file
Flag: files >100 lines
Detect content overlap between rule files in the same language module

MCP Servers (.mcp.json or active MCP config)

Count configured servers and total tool count
Estimate schema overhead at ~500 tokens per tool
Flag: servers with >20 tools, servers that wrap simple CLI commands (gh, git, npm, supabase, vercel)

CLAUDE.md (project + user-level)

Count tokens per file in the CLAUDE.md chain

Track record

Benchmark

18 / 21

test cases passed, vs 9 / 21 without

Adoption

Users: 1
Times used: 13

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

loulanyue / awesome-claude-notes

skills/context-budget/SKILL.md

View on GitHub ↗

License MITImported 8/3/2026Version v7

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

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See it in action

What's inside

Context Budget

When to Use

How It Works

Phase 1: Inventory

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills