token-economics

token-economics is a skill for Claude Code, Codex from LuuOW/meridian-mcp. It costs 40 tokens per session (882 once invoked), scanned A, original, MIT.

A guide for treating coding-agent token usage as an energy and cost budget.

In plain words
What is it for?
It is for estimating workload cost, comparing models and architectures, and measuring efficiency using useful work per token, watt, dollar, or unit of time.
Why use it?
It helps compare approaches by the useful work they produce for the tokens, time, and money they consume.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It is for estimating workload cost, comparing models and architectures, and measuring efficiency using useful work per token, watt, dollar, or unit of time.

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Install with agentmods
npx agentmods add skills/luuow/meridian-mcp/token-economics
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add LuuOW/meridian-mcp --skill token-economics
Clone the repo
git clone --depth 1 https://github.com/LuuOW/meridian-mcp

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for token-economics

README.md
[![agentmods](https://agentmods.dev/badge/skills/luuow/meridian-mcp/token-economics/github.svg)](https://agentmods.dev/skills/luuow/meridian-mcp/token-economics)
Your own site
<a href="https://agentmods.dev/skills/luuow/meridian-mcp/token-economics"><img src="https://agentmods.dev/badge/skills/luuow/meridian-mcp/token-economics/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for token-economics

Your own site · 80×15
<a href="https://agentmods.dev/skills/luuow/meridian-mcp/token-economics"><img src="https://agentmods.dev/badge/skills/luuow/meridian-mcp/token-economics.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 882 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00040 $0.00882
Opus 5 $0.00020 $0.00441
Sonnet 5 $0.00008 $0.00176
Haiku 4.5 $0.00004 $0.00088

Measured 8d ago against content hash 6fa662a6daaa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

token-economics scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/token-economics/SKILL.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

token-economics

Tokens are not only a billing unit. They are an operational energy budget.

In this system:

  • tokens spent = energy consumed
  • useful output = work extracted
  • signal per token = efficiency
  • throughput per watt / per dollar = system fitness

token-awareness asks "what is the minimum effective change?"

token-economics asks "what is the best return on energy for this workload?"

1) Core Questions

Before choosing an implementation path, model, or orchestration pattern, ask:

  1. What is the expected token burn for this task?
  2. How much of that burn produces useful signal instead of exploration noise?
  3. Can the same outcome be achieved with fewer reads, fewer hops, or a smaller model?
  4. What is the comparable performance per watt / per dollar across routes?

2) Energy Framing

Use these derived metrics:

energy_cost          = total tokens consumed
useful_work          = accepted decisions, code changes, validated conclusions
energy_efficiency    = useful_work / energy_cost
throughput_per_watt  = useful_work / wall_time / watts
throughput_per_dollar = useful_work / dollar_cost

If real watt telemetry is unavailable, use tokens as the normalized energy unit.

That still enables valid comparisons:

  • route A vs route B
  • model A vs model B
  • single-agent vs multi-agent
  • broad read vs grep + targeted read

3) Comparison Template

Option A: large-model, broad context read
- 12k input tokens
- 2 tool hops
- 1 answer
- low implementation risk

Option B: grep + targeted reads + smaller model
- 2.5k input tokens
- 4 tool hops
- 1 answer
- similar implementation risk

If output quality is comparable, B has much better energy efficiency.

4) What Usually Burns Energy

  • broad exploratory reads without a concrete question
  • repeated re-reading of the same files
  • too many agent handoffs
  • large-model use for narrow deterministic tasks
  • verification that repeats the implementation worker's path instead of testing the result
  • giant prompt blocks that carry stale context forward

Read the full file on GitHub · 129 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 129 lines · 40 tokens per session scan A 6fa662a6daaa

Subscribe to this mod's changes

token-economics is a skill published in the GitHub repository LuuOW/meridian-mcp (0 stars, last pushed 2d ago), licensed MIT. It adds 40 tokens to every session and 882 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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