[anilcancakir]

Patch. Releases #67, the only change since 0.0.19.

What ships

• ExtensionNotRegisteredException and ArtisanCommand.exitTryAgain (75). VmServiceClient.callServiceExtension maps JSON-RPC -32601 to the new exception on the first call and on both retries, so a connected command can tell "not registered yet" from a failed call without importing package:vm_service. The dispatcher prints it as one line and exits 75 (EX_TEMPFAIL).
• start on a cold native build no longer exits on a stack fragment. When the scrape times out and flutter run is still alive, start keeps the booting session, prints the status / retry / --timeout hints and exits 75; when it is gone, it reaps the session, names the log and exits 1. A connected command against a booting session whose flutter run is alive also exits 75 (was 1).

No sibling inside the org calls -32601 or catches vm.RPCError from callServiceExtension (grepped dusk, telescope, magic, magic_devtools, magic_cli, magic_example, magic_starter; the one hit is dusk's CDP client, which does not go through this path), so the new exception type changes nothing for them. Their ^0.0.19 constraints already admit 0.0.20.

Stamps

Site	From	To
pubspec.yaml	0.0.19	0.0.20
lib/src/mcp/mcp_server.dart (handshake, test-guarded)	0.0.19	0.0.20
server.json (test-guarded)	0.0.19	0.0.20
example/pubspec.yaml, example/packages/awesome_plugin/pubspec.yaml	0.0.19	0.0.20
example/pubspec.lock	0.0.19	0.0.20 (no /Users/ path)
skills/fluttersdk-artisan/SKILL.md body stamp	v0.0.19 (2026-10-09)	v0.0.20 (2026-10-11)
skills/fluttersdk-artisan/SKILL.md frontmatter version:	0.0.7	0.0.8 (#67 moved SKILL.md, mcp-tools.md and state-and-recovery.md)
doc/commands/install.md (x3), doc/getting-started/installation.md (x2), doc/plugins/authoring.md	^0.0.19	^0.0.20
CLAUDE.md release line	0.0.19	0.0.20

git grep -nF 0.0.19 -- ':!CHANGELOG.md' ':!*.lock' is empty. artisan pins no fluttersdk sibling, so there are no floors to move.

Gates

• dart format --output=none --set-exit-if-changed lib/ test/ bin/: 197 files, 0 changed.
• dart analyze lib test bin: no issues.
• dart test --exclude-tags=integration --timeout=30s: +1427, all passed.
• dart pub publish --dry-run: 0 warnings, from the commit.

Tag

git tag 0.0.20 <merge-oid> && git push origin 0.0.20