Claude Code mod · 0.1.0
Claude says it's done. Ernesto would like to see the tests.
Ernesto is a small animated companion for Claude Code. In optional QA mode, he shows supported test results alongside their recorded scope and last-checked code snapshot.
Public release
Actual 0.1.0 terminal runtime recorded using a fictitious local arithmetic test. Runtime and helper bytes match the published tag. The browser states below are a separate synthetic preview; selecting one does not run tests.
Recorded from actual Claude Code 2.1.296 CLI terminal output on macOS 26.5.1, using Ernesto 0.1.0, Node 24.3.0 and Vitest 4.1.11. The fixture is a fictitious local arithmetic test. Terminal cells are rendered faithfully; the evidence pane and companion band are cropped and pauses shortened. The helper ran explicitly in a separate local process. No model prompt or model call was used. Snapshot matches describe reviewed inputs at the shown comparison time, not external services or tamper-proof execution.
Companion mode starts with QA off.
The explicitly invoked local Vitest helper records a pass for one selected test.
Editing the source makes that previous pass stale.
A new real test run fails. The host shows the failure.
Chocolate changes the companion mood; the failed evidence stays unchanged.
Explore the QA states
Open an example to see what the result means and what to do next. These are illustrations, and no tests run in your browser.
No supported result has been recorded. Unknown is not a pass.
Illustrative example · one local check
Next step: Explicitly run your configured check to record a result.
A configured check passed for its declared scope at a recorded snapshot. This only describes that check.
Illustrative example · one local check
Next step: Review the check's scope. A pass covers only what that check tested.
A captured input changed after the check. The previous pass remains historical evidence. Run the check again yourself.
Illustrative example · one local check
Next step: Run the check again against the changed inputs. The earlier pass is historical.
The configured check finished with a failure. Other checks and acceptance criteria remain separate.
Illustrative example · one local check
Next step: Inspect the failure, fix the code and run the check again.
Let Ernesto keep you company while you work. Hide him, quiet him down, or reduce motion whenever you need a calmer workspace.
Companion mode needs no project test integration. For QA mode, follow the released source documentation to configure the local helper and supported runner. You choose when that helper executes tests. The mod observes their evidence and does not silently run tests.
Optional QA mode reads a supported structured result for one workspace. It compares the declared inputs and configuration with the captured snapshot. A match at the last comparison does not prove that every file, dependency, external service or business requirement was tested.
Third-party code runs with your user privileges. Inspect the source, capabilities and requirements before installing. Ernesto is an independent Wavect mod, not an Anthropic endorsement.
Combined shell syntax needs Claude Code 2.1.292 or later; combined in-session syntax needs 2.1.275 or later and asks for source confirmation. The mod may require a newer tested host.
claude plugin install ernesto --marketplace wavect/ernesto/plugin install ernesto --marketplace wavect/ernestoclaude plugin marketplace add wavect/ernesto
claude plugin install ernesto@ernestoclaude plugin marketplace update ernesto, then claude plugin update ernesto@ernesto --scope user. Match your installation scope and reload plugins or restart afterward. Future version transitions have not been tested.claude plugin update ernesto@ernestoclaude plugin uninstall ernesto@ernestoclaude plugin marketplace remove ernestoInstall and uninstall default to user scope. Match the scope used during setup. Reload plugins or restart the session after changes. Third-party marketplace auto-update is off by default. Removing a marketplace also uninstalls its plugins. Review Ernesto preferences, QA helper configuration and local evidence separately before deleting anything; preserve your project files.
Claude Code installation documentationThe matrix below lists the hosts, operating systems and runner versions tested for this release. Only those combinations are supported. Website translations do not imply four-language mod UI support. Ordinary Claude chat and Cowork do not show the Code mod interface.
Ernesto for Claude Code 0.1.0
Claude Code: 2.1.296
The audited release runtime adds no model calls, telemetry or external network requests. Claude and tests you choose to run keep their own network, data-handling and cost behavior. The explicit helper stores scalar summaries and snapshot descriptors; project tests can write their own artifacts. Other local processes can modify evidence. Ernesto is not a sandbox or an independent audit. A hard kill can leave an incomplete scalar artifact, which the mod rejects.
Source code uses the MIT license. Wavect retains artwork and trademark rights: plugin display, demonstration screenshots and attributed plugin redistribution are permitted under the separate ASSET_LICENSE.md terms. Other artwork uses require Wavect permission. Claude access and your test infrastructure may have separate requirements and costs.
MIT (source code) · Wavect artwork rights retained; plugin display and attributed redistribution permitted; see ASSET_LICENSE.md
A visible check result helps you ask better questions. A release decision still needs independent testing, code review and human acceptance.