feat: persistent input preamble (ITerminal.InputPreamble)#10
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Add a persistent input-preamble surface (ITerminal.InputPreamble) that pins consumer-set styled rows directly above the always-on input editor — the mirror of StatusSurface, which pins rows below it. Enables a consumer (dmon) to frame the input with a header rule that stays pinned instead of scrolling away. MODIFIED fixed-region "Bottom-pinned component stack"; ADDED "Persistent input preamble". Bumps dcli rc.4 -> rc.5. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Lift the deferred input prompt-prefix on the base editor: ITerminal.Input gains SetPrompt(Line/string), rendered inline before the editable region on the first visual row with a display-width-aware caret offset. Completes dmon's framed input (the live-line glyph, companion to persistent-input-preamble). ADDED fixed-region "Input editor prompt prefix". Bumps to the next preview revision after persistent-input-preamble. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
…on 1) - 1.1 Add IInputPreamble interface to ITerminal.cs mirroring IStatus - 1.2 Add InputPreambleSurface with nested SetInputPreambleCommand, mirroring StatusSurface exactly - 1.3 Wire ITerminal.InputPreamble property; Terminal ctor constructs InputPreambleSurface(loop) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…(section 2)
- 2.1 Add PreambleLine rows holder to FixedRegionComposer (parallel to StatusLine)
- 2.2 SetInputPreambleCommand applies Preamble.Rows and marks model dirty
- 2.3 FixedRegionComposer.Compose inserts preamble between above-input overlay and input rows
- 2.4 Budget arithmetic: preamble truncates before editor loses last row; status stays sacred
Also fix: BelowInput overlay caret offset now includes preamble rows (aboveCount)
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…surface (section 3) - 3.1 Preamble rows render directly above input editor on next frame - 3.2 Preamble persists across multiple input submissions without re-set - 3.3 Empty SetRows() clears preamble and returns rows to budget - 3.4 Budget pressure: preamble truncates, input keeps >=1 row, status stays sacred - 3.5 Keys reach the input editor with preamble set; caret parks past preamble row - 3.6 Existing FixedRegionTests pass as regression guard (872 total) Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
…surface (section 4) - 4.1 Set a persistent dim-rule preamble in Phase 1 of Dcli.Demo; clear it in Phase 6 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- 5.1 dotnet build clean (0 warnings, 0 errors) - 5.2 dotnet test 872/872 green - 5.3 dotnet format --verify-no-changes clean - 5.4 openspec validate persistent-input-preamble --strict valid - 5.5 version bump 0.2.0-rc.4 → 0.2.0-rc.5 in Dcli and Dcli.Testing csproj - 5.6 CHANGELOG: added IInputPreamble / ITerminal.InputPreamble entry - 5.7 DEVLOG: updated status and appended section 5 notes - 5.8 dmon coordination note in DEVLOG Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Merged preamble requirement additions into openspec/specs/fixed-region/spec.md: - Modified bottom-pinned stack requirement to include persistent input preamble - Added new Requirement: Persistent input preamble (3 prose clauses, 5 BDD scenarios) Archived to openspec/changes/archive/2026-06-19-persistent-input-preamble/ Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
IInputPreamble/ITerminal.InputPreamble— a persistent multi-row band rendered immediately above the input editor, using the sameLine/LineBuilderAPI as statusSetRows()(no args); participates in height budget (truncates before input editor loses rows; status remains sacred); purely presentational (no key interception)0.2.0-rc.4→0.2.0-rc.5Changes
IInputPreambleinterface +InputPreambleSurfaceimpl (mirrorsIStatus/StatusSurface)ITerminal.InputPreambleproperty onTerminalandHeadlessTerminalRenderModel.FixedRegion.Preambleholder +SetInputPreambleCommandFixedRegionComposer: preamble band emitted above input editor, folded into height-budget arithmeticopenspec/specs/fixed-region/spec.mdupdated with newPersistent input preamblerequirementTest plan
dotnet build— clean (0 warnings, 0 errors)dotnet test— 872/872 greendotnet format --verify-no-changes— cleanopenspec validate persistent-input-preamble --strict— validDcli.Demosample and confirm preamble renders above inputdmon note:
dmon's Terminal UX change consumesITerminal.InputPreambleand must reference dcli0.2.0-rc.5.🤖 Generated with Claude Code