TLDR;

Closes #13. Make and Mise targets prefixed with _ are now sorted below public targets, separated by a divider, and rendered with a muted icon/label plus a "private" description marker. Also fixes an intermittent xterm dimensions TypeError by waiting for the shell process to spawn before sendText.

Details

What Was Added

• src/tree/PrivateTaskDecorationProvider.ts — new FileDecorationProvider registered on the commandtree-private URI scheme that paints private-task labels with descriptionForeground. Exports buildPrivateTaskUri(taskId).
• src/models/TaskItem.ts — isPrivateTask, isPhonyTask helpers, an optional isPhony flag on CommandItem/MutableCommandItem, and resourceUri support on CommandTreeItem (extracted into applyOptionalProps to keep the constructor lean).
• src/discovery/make.ts — .PHONY: parser (parsePhonyTargets, with line-continuation support) that tags targets with isPhony: true.
• src/tree/nodeFactory.ts — createTaskNodes(tasks) groups tasks and injects a createDividerNode between the last public task and the first private one. Private tasks get a muted ThemeIcon, a private resourceUri, and a private marker appended to their description.
• src/CommandTreeProvider.ts — comparators comparePrivateTasks, compareHelpTasks, comparePhonyTasks, compareMakeTaskPriority layered into all three sort modes (folder, type, name). Private tasks sort last; help pins to the top of Make targets; phony targets come before non-phony ones.
• E2E tests in src/test/e2e/treeview.e2e.test.ts:
  • Private Make And Mise Tasks — writes fixture Makefile and mise.toml with mixed public/private targets, asserts divider position, ordering, description contains private, icon color descriptionForeground, and resourceUri.scheme === "commandtree-private".
  • Make Target Conventions — asserts help is pinned first, phony public targets outrank non-phony ones, and pattern rules (%.o) / dot-prefixed special targets (.DEFAULT) stay hidden.

What Was Changed

• src/runners/TaskRunner.ts — SHELL_INTEGRATION_TIMEOUT_MS raised from 50 ms to 500 ms and the fallback path now awaits terminal.processId before calling sendText, avoiding the xterm dimensions TypeError when the viewport hasn't been laid out yet. Added exhaustive never-typed default branch in formatParamValue.
• src/extension.ts — registers PrivateTaskDecorationProvider via vscode.window.registerFileDecorationProvider; returns undefined explicitly when there's no workspace root.
• src/discovery/docker.ts — destructuring cleanup in parseDockerComposeServices.
• src/test/e2e/execution.e2e.test.ts — runInCurrentTerminal tests now (a) write a marker file via the shell and assert the file exists + contains the echoed text (proves the command actually ran, not just that a terminal appeared), (b) watch VS Code's renderer.log and assert no dimensions/TypeError lines are written during the command, (c) assert the active terminal name and exit status. Timeouts bumped to 20 s to match the longer shell-integration wait.
• Skill docs (.claude/skills/*/SKILL.md), .github/workflows/ci.yml, Makefile, coverage-thresholds.json, eslint.config.mjs, Agents.md, Claude.md, .vscode/extensions.json, tools/check-coverage.mjs — repo-standards polish bundled in.

What Was Deleted

Nothing of substance deleted from runtime code — some destructuring simplifications and one allowed-tools line removed from submit-pr SKILL frontmatter.

How Tests Prove It Works

• src/test/e2e/treeview.e2e.test.ts::Private Make And Mise Tasks::make private targets sort after public ones and render muted — asserts folder children are [alpha_public, zeta_public, ─────, _beta_private, _omega_private], each private item has description containing private, icon ThemeColor.id === "descriptionForeground", and resourceUri.scheme === "commandtree-private".
• ...::mise private tasks sort after public ones and render muted — same assertions for mise.toml.
• ...::Make Target Conventions::make help is pinned to the top, phony targets sort before non-phony ones, and special targets stay hidden — asserts folder children are [help, build, aaa_file, ─────, _private] and %.o / .DEFAULT are absent.
• src/test/e2e/execution.e2e.test.ts::runInCurrentTerminal creates terminal when none exists and ...reuses existing active terminal — assert the marker file is written and renderer.log contains zero dimensions/TypeError lines during the run, proving sendText no longer hits the xterm layout race.

Spec/Doc Changes

• .claude/skills/*/SKILL.md updated to reference make test (fail-fast + coverage threshold) and the repo's actual Make targets — no behaviour spec changes.

Breaking Changes

None. New data (isPhony, resourceUri, divider node, commandtree-private URI scheme) is additive. Sort order changes are a UX improvement within existing sort modes and do not alter any public API.

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