cost-report

cost-report is a skill for Claude Code, Codex from jmagly/aiwg. It costs 21 tokens per session (1,526 once invoked), scanned A, original, MIT.

A report of token usage and spending for an AIWG workflow session, broken down by operation, model, or time period.

In plain words
What is it for?
Use it to review the current or latest session, inspect per-model costs, compare spending with a budget, or view fleet spend.
Why use it?
It shows what a session cost and whether spending stayed within a chosen budget.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to review the current or latest session, inspect per-model costs, compare spending with a budget, or view fleet spend.

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Install with agentmods
npx agentmods add skills/jmagly/aiwg/cost-report
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 jmagly/aiwg --skill cost-report
Clone the repo
git clone --depth 1 https://github.com/jmagly/aiwg

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 cost-report

README.md
[![agentmods](https://agentmods.dev/badge/skills/jmagly/aiwg/cost-report/github.svg)](https://agentmods.dev/skills/jmagly/aiwg/cost-report)
Your own site
<a href="https://agentmods.dev/skills/jmagly/aiwg/cost-report"><img src="https://agentmods.dev/badge/skills/jmagly/aiwg/cost-report/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 cost-report

Your own site · 80×15
<a href="https://agentmods.dev/skills/jmagly/aiwg/cost-report"><img src="https://agentmods.dev/badge/skills/jmagly/aiwg/cost-report.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,526 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Excessive Agency · line 81
    Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.
    Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
How audits are shown
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 $0.00021 $0.01526
Opus 5 $0.00010 $0.00763
Sonnet 5 $0.00004 $0.00305
Haiku 4.5 $0.00002 $0.00153

Measured 9d ago against content hash 7af06563c914, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

cost-report 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 9d 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.

agentic/code/addons/aiwg-utils/skills/cost-report/SKILL.md · 195 lines

How it starts

The opening of the file, as written. The whole thing — 195 lines — stays where its author put it; the contents beside it link to each section on GitHub.

cost-report

You generate a cost and token-spending report for the current or most recent workflow session. You read accumulated token usage data from .aiwg/ralph/cost-tracking.json and present a breakdown by operation, model, and time period.

Triggers

Alternate expressions and non-obvious activations (primary phrases are matched automatically from the skill description):

  • "how much did that cost" → report for most recent session
  • "what did this iteration cost" → report scoped to current agent loop
  • "token breakdown" → report with per-model detail
  • "did we stay in budget" → report with budget threshold comparison

Trigger Patterns Reference

Pattern Example Action
Session cost "cost report" aiwg cost-report
Current loop cost "how much has this session cost so far" aiwg cost-report --session current
Named session "cost for the greenfield run" aiwg cost-report --session greenfield
Model breakdown "show costs by model" aiwg cost-report --by-model
Budget check "are we over budget" aiwg cost-report --budget <N>
Fleet spend "show fleet spend" aiwg cost-report --fleet

Behavior

When triggered:

Fleet mode

For --fleet, run the native CLI handler. It reads ~/.config/aiwg/fleet.yaml, resolves each key_ref only from ~/.config/aiwg/keys/ or AIWG_OPENROUTER_KEY_*, and reports bot | machine | spend MTD | cap | % used | top-3 expensive sessions.

Fleet manifests contain references only. Never read a credential from a project manifest, print a credential, or copy one into an artifact. AIWG observes and correlates spend; OpenRouter enforces all limits and caps. Session/model correlation is optional and uses locally recorded bot=, session=, and generation_id= tags in .aiwg/activity.log.

aiwg cost-report --fleet
aiwg cost-report --fleet --json
aiwg cost-report --key <key_ref> --monthly-cap 10

For setup and security details, see @$AIWG_ROOT/docs/guides/openrouter-fleet-costs.md.

Read the full file on GitHub · 195 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. 9d ago First seen · 195 lines · 21 tokens per session scan A 7af06563c914

Subscribe to this mod's changes

cost-report is a skill published in the GitHub repository jmagly/aiwg (211 stars, last pushed yesterday), licensed MIT. It adds 21 tokens to every session and 1,526 once invoked, about $0.0001 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.