Borrowing it
Nothing to install: this file belongs to janekbaraniewski/openusage. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/janekbaraniewski/openusage/main/AGENTS.mdgit clone --depth 1 https://github.com/janekbaraniewski/openusageWrote 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.
[](https://agentmods.dev/instructions/janekbaraniewski/openusage/agents-md)<a href="https://agentmods.dev/instructions/janekbaraniewski/openusage/agents-md"><img src="https://agentmods.dev/badge/instructions/janekbaraniewski/openusage/agents-md/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.
<a href="https://agentmods.dev/instructions/janekbaraniewski/openusage/agents-md"><img src="https://agentmods.dev/badge/instructions/janekbaraniewski/openusage/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01484 | $0.01484 |
| Opus 5.5 | $0.00594 | $0.00594 |
| Sonnet 5.5 | $0.00297 | $0.00297 |
| Haiku 4.5 | $0.00148 | $0.00148 |
Grade A, and why
openusage AGENTS.md 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 161 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md — OpenUsage
Guidelines for coding agents working in this repository.
Project Overview
OpenUsage is a Go terminal dashboard (Bubble Tea) for monitoring AI coding tool usage and spend. It supports two runtime paths:
- Dashboard mode (
openusage) reads usage snapshots through the local telemetry daemon runtime. - Daemon mode (
openusage telemetry ...) collects provider data + hook events into SQLite.
CGO is required (CGO_ENABLED=1) due to mattn/go-sqlite3 usage (Cursor + telemetry store).
Build, Run, Test, Lint
# Build
make build # binary -> ./bin/openusage (with version ldflags)
go build ./cmd/openusage # quick build without ldflags
# Run
make run # go run cmd/openusage/main.go
OPENUSAGE_DEBUG=1 make run # enable debug logging to stderr
make demo # run demo binary with simulated data
# Telemetry daemon
go run ./cmd/openusage telemetry daemon
go run ./cmd/openusage telemetry daemon status
go run ./cmd/openusage telemetry hook codex < /tmp/codex-hook.json
# Test
make test # go test -race -coverprofile=coverage.out -covermode=atomic ./...
make test-verbose # go test -v -race ./...
go test ./internal/providers/... -v
go test ./internal/telemetry/... -v
go test ./internal/tui/... -v
# Lint/format
make lint # golangci-lint run ./... (skips if binary missing)
make vet # go vet ./...
make fmt # go fmt ./...
# Dependencies
make deps # go mod download && go mod verify
make tidy # go mod tidy
Current Structure
cmd/openusage/ cobra CLI entrypoint
main.go root command
dashboard.go Bubble Tea runtime wiring
telemetry.go telemetry daemon / hook subcommands
cmd/demo/ demo dashboard runner with synthetic snapshots
internal/
config/ settings + credentials JSON persistence
core/ shared types (UsageSnapshot, Metric, ProviderSpec, widgets, time windows)
daemon/ daemon server/client, socket runtime, service install/status
detect/ local tool + env key auto-detection
integrations/ Codex/OpenCode/Claude hook/plugin install + version checks
parsers/ shared HTTP header parsing helpers
providers/ provider implementations + registry (16 providers)
telemetry/ SQLite store, ingest pipeline, dedup, read model
tui/ Bubble Tea views/components/settings UX
version/ build metadata injected by ldflags
plugins/ integration install scripts/templates
configs/ example settings
docs/skills/ feature and provider implementation workflows
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.
- 1mo ago First seen · 161 lines · 1,484 tokens per session scan A 70173e09e3c1
openusage AGENTS.md is an instructions file published in the GitHub repository janekbaraniewski/openusage (235 stars, last pushed yesterday), licensed MIT. It adds 1,484 tokens to every session, about $0.0059 per session on Opus 5.5. 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 2026-08-30.
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