Add standalone Canvas Designer provider to Wizard plugin - #38
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Copilot review overview
🟡 Changes recommended
The handoff file check has a symlink race that can bypass the intended session-artifact boundary.
Review effort: Balanced
Findings: 1
Open (4)
What changed in this PR
Adds a standalone Canvas Designer shell to the Wizard plugin with validated handoff loading and token-gated loopback access.
Changes:
- Adds handoff validation and Designer lifecycle/server logic.
- Adds targeted provider and security tests.
- Bumps Wizard plugin metadata to 0.3.0.
| File | Description |
|---|---|
README.md |
Documents the Designer canvas and version. |
plugins/spec-kit-copilot-wizard/plugin.json |
Bumps the plugin version. |
.github/plugin/marketplace.json |
Bumps the marketplace entry version. |
.../extension.mjs |
Registers and manages Designer instances. |
.../handoff.mjs |
Validates and reads session handoffs. |
.../server.mjs |
Serves the token-gated shell. |
.../test/provider.test.mjs |
Tests validation, boundaries, and HTTP access. |
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September 30, 2026 14:48
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
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Summary
speckit-canvas-designerextension within the installed Wizard plugin. Its canvas opens only with a validated handoff ID from the child session'ssession.workspacePath, and serves a token-gated shell.This middle layer deliberately excludes
bootstrap.mjs, checkout extension copying, and all Wizard launch UI/handler changes. Extension discovery is provided by the installed Wizard plugin'sextensions/declaration. Native stack metadata is unchanged.Validation
node --test plugins/spec-kit-copilot-wizard/extensions/speckit-canvas-designer/test/provider.test.mjs(4 passing)git diff --cached --check