Agent IslandVS
ccusageVerdict
Pick ccusage when you want terminal-first daily, weekly, monthly, session, block, and JSON reports that fit scripts and audits. Pick Agent Island when you want an always-visible desktop companion that notices live work, stalled runs, and your-turn moments without running a report command.
| Decision | Agent Island | ccusage |
|---|---|---|
| Price | Free | Free |
| Source | MIT | Public repository; no SPDX license returned by GitHub at verification |
| Platforms | macOS and Windows apps | Systems that can run its Node-based CLI |
| Supported agents | Claude, Codex, Antigravity, Grok, Cursor | Claude, Codex, Antigravity and many additional local CLI data sources |
| Live session state | Claude, Codex, Antigravity, Grok, Cursor | Terminal reports; live coding-session state is not the documented core |
| Your-turn alerts | Claude, Codex, Grok; Antigravity working or idle | Not found in reviewed public documentation |
| Usage and reports | Claude, Codex, Antigravity, Grok, Cursor; weekly and monthly cards plus local estimates | Daily, weekly, monthly, session, block, statusline and JSON reports |
| Cost data | Locally computed estimates labeled as estimates | Costs calculated from local usage data and model pricing |
| Data boundary | Local; no account or telemetry | Reads local coding-agent CLI data |
| Install | GitHub Releases | npx, bunx, pnpm dlx or Nix |
| Best fit | Ambient session attention | Scriptable usage and cost analysis |
Ambient state versus an invoked report
Agent Island is designed to stay visible while coding agents run and to surface a handoff when a task needs attention. ccusage is designed to be invoked in a terminal, where it turns local agent data into reports. The deciding question is whether you want an interruption signal or a queryable accounting tool Review the evidence source
Reporting depth favors the terminal tool
ccusage offers daily, weekly, monthly, session, billing-block, statusline, all-source, per-agent, project-filtered, date-filtered, and JSON modes. Agent Island presents weekly and monthly report cards and a smaller local ledger rather than a general reporting CLI. For shell pipelines and machine-readable exports, ccusage is the stronger fit Review the evidence source
The supported-source lists overlap but are not identical
Agent Island names five user-facing integrations and applies one desktop state model across them. ccusage reads many more local CLI usage formats, including Claude, Codex, OpenCode, Amp, Droid, Antigravity and others, but does not claim the same your-turn notification surface. Broad report ingestion and live attention remain separate strengths Review the evidence source
Moving from ccusage to Agent Island
Install Agent Island from GitHub Releases, keep ccusage available through npx or your existing package runner, and use each for one week. Map periodic report checks to Agent Island’s weekly or monthly cards, while letting live states replace manual terminal polling for attention. No ccusage history is imported; both tools can continue reading their own local sources. Agent Island does not provide ccusage’s JSON schema, CLI flags, date slicing, all-source report matrix, or shell composability, so keep ccusage for audits and automation.
Still weighing other options? Read the ranked alternatives
FAQ
Is ccusage free?
Yes. It is publicly available and can be run directly through common JavaScript package runners. GitHub did not return a declared SPDX license for the repository at the verification date, so review the repository terms for reuse.
Can I run both at once?
Yes. A practical setup is to use Agent Island for live attention and ccusage for terminal reports, JSON exports, and historical analysis.
Does Agent Island replace ccusage?
Only if your needs are mostly live state and lightweight reports. It does not replace the deeper CLI report matrix or machine-readable output.
Which is better for cost analysis?
ccusage is better for filterable terminal reports and JSON workflows. Agent Island is better for a compact local estimate beside live session state; its numbers are estimates, not provider billing records.
Does either upload my code?
Agent Island processes supported state locally with no account or telemetry. ccusage documents reading local coding-agent CLI usage data; its reviewed public documentation does not describe uploading source code for report generation.
Does Cursor have live state in Agent Island?
Yes. Cursor has live session state and your-turn alarms in Agent Island 2.1.2, alongside plan and billing-cycle usage.