Axon v1.2.7

Axon v1.2.7

Axon v1.2.7 is the biggest release so far. It is less about one flashy button
and more about turning Axon into a real IDE platform: extension activation,
built-in contribution routing, terminal reliability, project-aware testing,
Problems as an editor surface, richer syntax coloring, faster workspace startup,
and a documented architecture for the editor's hardest systems.

This release includes 38 commits after a63637e.

Extension Host and Built-in Migration

• Added built-in extension activation so Axon can activate first-party features
  through the same path future installable extensions will use.
• Added an executable command runtime for extension-owned commands.
• Added extension lifecycle state, activation storage, contribution registry
  wiring, and diagnostics around slow or failed activation.
• Routed built-in workbench surfaces through contribution metadata instead of
  continuing to mount every feature directly from the old renderer structure.
• Moved more implementation ownership under extensions/builtin, including
  agent, terminal, Git/source control, search, settings, testing, problems,
  language tools, tasks, Spotify, Markdown preview, HTML preview, and media
  preview.
• Added extensions/builtin/README.md to explain how built-in manifests,
  language packages, workbench UI, and shared helpers should be organized.
• Added built-in language manifests for more supported languages and tools:
  Astro, Bash, CSS, Docker, GraphQL, HTML, JSON, MDX, Prisma, Svelte, Tailwind,
  Vue, YAML, and the existing LSP-backed languages.

Architecture Migration

• Continued the migration into production IDE boundaries: app shell, workbench,
  platform services, renderer services, built-in extensions, backend services,
  and shared packages.
• Moved terminal protocol/session helpers into apps/editor/src/platform so UI
  and transport are not owned by the same React component.
• Moved agent workbench code under the built-in Agent extension and kept shared
  agent logic in extension-owned lib folders.
• Added built-in contribution routing helpers so Search, Settings, Git,
  Terminal, Agent, Testing, Problems, Tasks, Spotify, and preview surfaces can
  be resolved through declared contributions.
• Documented the current architecture and migration direction in
  architecture.md.

Terminal Reliability

• Reworked terminal IO so the backend does not treat websocket delivery as the
  same thing as visible xterm output.
• Added renderer-side acknowledgement timing after xterm writes complete, which
  protects replay cursors during long-running output.
• Hardened reconnect/replay behavior so long agent streams are less likely to
  drop or consume output while the renderer is busy.
• Added terminal session health data for received bytes, acknowledged bytes,
  pending bytes, queued bytes, queue peaks, drained chunks, reconnect count, and
  websocket close codes.
• Reduced noisy terminal logging after startup and workspace-open fixes.
• Kept terminal UI under the built-in Terminal workbench while shared protocol
  behavior lives in platform and PTY/session ownership stays in services/core.

Problems and Testing

• Moved Problems into an editor tab opened from the status bar, instead of a
  detached modal-like surface.
• Kept the Problems UI as a strong diagnostics view with presentation helpers,
  filtering, copy actions, and navigation back to source ranges.
• Added diagnostic cache ownership and project-aware diagnostics export for
  agent workflows.
• Upgraded the Testing workbench with provider discovery, target listing,
  details, output, and status bar access.
• Made test discovery project-aware so generated folders, caches, dependency
  folders, and irrelevant build output do not appear as useful test targets.
• Kept test execution routed through project roots and provider commands instead
  of assuming Axon's own repository layout.

LSP, Startup, and Workspace Performance

• Warmed active language-server paths earlier so hover, completion, diagnostics,
  and semantic tokens can become ready closer to the moment a workspace opens.
• Preserved React-aware Monaco language ids for TSX/JSX while still sending the
  correct language identity into LSP requests.
• Fixed React runtime resolution so valid React files do not report missing
  react/jsx-runtime.
• Improved package/export completion and external definition behavior as part of
  the LSP cleanup work.
• Unblocked workspace open services so the file tree can appear quickly without
  waiting on every secondary service.
• Added clearer diagnostics for LSP startup, spawn/init phases, semantic-token
  legends, and service boundaries.

Rich Syntax Coloring

• Added Axon's richer syntax-coloring pipeline: Monaco tokens, TextMate/Shiki
  grammar scopes, LSP semantic tokens, Axon semantic decorations, and targeted
  language fallbacks.
• Added the token inspector so real rendered tokens can be debugged from inside
  the editor. It reports Monaco token class, rendered class/color, active theme,
  active syntax count, semantic token data, expected colors, decoration class,
  TextMate readiness, and grammar/CSP errors.
• Fixed the renderer Content-Security-Policy so the inlined Oniguruma
  WebAssembly engine can load and TextMate grammar tokenization can actually
  run inside Electron.
• Added a retry path for empty semantic-decoration passes during editor startup.
• Mapped Monaco bracket pair colors back to active theme bracket colors so
  bracket highlighting no longer paints over the theme with unrelated bright
  colors.
• Expanded TextMate grammar coverage across built-in languages.
• Added Python fallbacks for imports, aliases, class-like identifiers,
  constructors, self, cls, and member access.
• Added shared member-access fallbacks for languages such as Go so chains like
  h.applicationService.GetByID(c.Request.Context()) can distinguish values,
  properties, and function calls.
• Added capture aliases for imported theme syntax keys such as diff.plus and
  diff.minus.
• Documented the whole token-coloring architecture in
  docs/TOKEN_COLORING_ARCHITECTURE.md, including the Monaco semantic
  highlighting issue that has been open since 2020 and why Axon owns the final
  decoration paint layer.

Markdown and Preview Surfaces

• Improved Markdown hash-link navigation so table-of-contents links scroll
  within the preview pane instead of moving the Electron document.
• Improved Markdown blockquote rendering so quoted preview text stays inside the
  blockquote instead of looking like a separate section.
• Added richer Markdown media handling for images, videos, sources, and local
  preview asset resolution.
• Fixed standalone Markdown preview tabs so they subscribe to the live dirty
  Monaco model once it exists. A preview opened beside an editor now updates
  live when the source Markdown tab changes.
• Kept disk reads as preview fallbacks without letting stale disk snapshots
  overwrite dirty editor content.

Source Control and Git

• Improved Source Control and Git workbench boundaries under the built-in Git
  extension.
• Fixed stale Git watcher refreshes so file state and source-control views do
  not keep using old workspace information.
• Improved media previews inside Git/source-control surfaces so binary media
  files can be previewed instead of only shown as generic binary content.
• Fixed the Source Control close-button behavior so the pane-level close action
  closes the active file/graph preview rather than the whole modal.
• Continued commit graph and Git history editor refinements behind the Git
  contribution boundary.

Modals and UI

• Restored modal sizing and layout after the modal performance pass caused
  Settings, Source Control, and Extensions to shrink or feel visually wrong.
• Kept modal overlays lightweight so they still feel like modals without
  reintroducing expensive blur or full opaque black screens.
• Fixed extension modal scroll and sizing behavior so small result sets do not
  collapse the modal.
• Kept sidebar context menus and tab popups theme-aware.
• Added the app menu button/chrome pass for platform menu access and
  traffic-light-safe UI placement.

Build, Release, and Diagnostics

• Added build diagnostics helpers so package/core build failures show clearer
  phase-specific causes.
• Fixed Windows package-build execution by using the current npm exec path,
  avoiding npm.cmd spawn failures.
• Improved package build wiring for the workspace packages used by the extension
  host.
• Added extension activation logs, terminal health diagnostics, startup phase
  reporting, and renderer diagnostics for hard-to-reproduce startup failures.

Commits Included

• f6f3333 fix: run package builds through npm execpath
• c47d7a1 feat: wire built-in extension activation
• 7c02f43 fix: protect terminal streams from renderer lag
• b57fffa refactor: split terminal session manager
• 06730df refactor: move agent workbench into builtin extension
• b7629bd refactor: split agent and terminal workbench boundaries
• 770c23d refactor: move built-in workbench features into extensions
• 8450a62 feat: add extension runtime diagnostics and lsp service boundary
• 29486d1 refactor: route built-in workbench surfaces through contributions
• 6439362 refactor: move terminal io into platform service layer
• 94febc3 fix: restore dev startup and quiet workspace open
• 7c2ae85 feat: add executable extension command runtime
• ae92d6c feat: mount extension view contributions in workbench
• b3e2e4e fix: restore modal layout and git media previews
• d554b4c feat: upgrade test explorer workbench
• 242e477 feat: harden testing workbench and react editor languages
• 61ac921 feat: route built-ins through workbench contributions
• 7e923a3 fix: improve markdown preview anchors and quotes
• 261df54 fix: prevent stale git watcher refreshes
• a909ea7 refactor: move preview and git workbench boundaries
• 6460abf refactor: finish built-in workbench migration
• eab7258 docs: document built-in extension registry
• cd2ac2c feat: add extension host lifecycle runtime
• aee9041 feat: strengthen problems and test panels
• b38af8f feat: move problems into editor tabs
• 14f4a60 fix: stabilize terminal output replay
• fb89623 fix: declare editor react runtime
• de25e57 perf: unblock workspace open services
• 531a935 fix: warm lsp and improve react token colors
• 7f23eed feat: add capture based token inspection
• 0140173 feat: wire semantic syntax highlighting
• bed3a1d fix: keep terminal output painting during agent streams
• 2a7505b fix: harden terminal repaint diagnostics
• 4aa358d fix: enrich semantic syntax coloring
• 7edc732 fix: paint textmate syntax before lsp overlay
• d9849e6 fix: apply rich syntax theme pipeline
• f5d4dc1 fix: harden rich syntax coloring pipeline
• fba2ff5 docs: expand token coloring architecture notes
• d3274a7 fix: keep markdown preview tabs live