Skip to content

feat(designer): Agentic Workflow Designer #18

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
DoyleDev merged 4 commits into from
Jun 11, 2026
Merged

feat(designer): Agentic Workflow Designer #18

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
4 commits
Select commit Hold shift + click to select a range
d9406fd
refactor(chat): extract shared agent-loop primitives into agent-runne…
DoyleDev Jun 11, 2026
3d7c441
feat(designer): agentic workflow designer — canvas, cells, edges, engine
DoyleDev Jun 11, 2026
dab9a1a
feat(designer): visible, configurable feedback-loop caps + convergenc…
DoyleDev Jun 11, 2026
c68449d
docs: add Workflow Designer section + screenshot to README
DoyleDev Jun 11, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,14 @@ Mason is a desktop application that leverages Databricks Unity AI Gateway and Un
<img src="docs/model.gif" alt="Switching between Claude, GPT, Gemini, and Llama models in Mason" width="720">
</p>

## Agentic Workflow Designer

Build multi-model agentic pipelines on a drag-and-drop canvas. Each **cell** picks a model, a subset of your connected tools, and a prompt; wire cells together with **flow** edges to pipe one cell's output into the next, or **feedback** edges to create bounded revision loops where a reviewer routes work back until it passes. Mix providers freely — a Fable cell can feed an Opus cell whose work a Sonnet cell validates — all through the same governed gateway.

<p align="center">
<img src="docs/designer.png" alt="Mason's Agentic Workflow Designer: cells wired into a multi-model pipeline with feedback loops" width="720">
</p>

## Installation

### macOS (Apple Silicon) — one-line install
Expand Down
377 changes: 377 additions & 0 deletions css/app.css
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1066,3 +1066,380 @@

/* Notes block in update modal */
body.dark #updateNotes { background: rgba(255,255,255,0.05); }

/* ============================================================
Workflow Designer
============================================================ */

.sidebar-designer-btn {
display: flex;
align-items: center;
gap: 8px;
padding: 8px 10px;
border: 1px solid #ccc;
border-radius: 8px;
background: none;
color: inherit;
font-size: 0.82rem;
cursor: pointer;
width: 100%;
transition: background 0.2s, border-color 0.2s;
}
.sidebar-designer-btn:hover { background: rgba(0,0,0,0.04); border-color: #aaa; }
.sidebar-designer-btn.active { border-color: #ff3621; color: #ff3621; }
body.dark .sidebar-designer-btn { border-color: #444; }
body.dark .sidebar-designer-btn:hover { background: rgba(255,255,255,0.04); border-color: #666; }
body.dark .sidebar-designer-btn.active { border-color: #ff3621; color: #ff6a5b; }

.designer-view {
display: none;
flex: 1;
flex-direction: column;
width: 100%;
min-height: 0;
position: relative;
}
.designer-view.visible { display: flex; }

.designer-toolbar {
display: flex;
align-items: center;
gap: 8px;
padding: 8px 14px;
border-bottom: 1px solid #e8e8e8;
flex-wrap: wrap;
}
body.dark .designer-toolbar { border-color: #2a2a2a; }
.designer-toolbar select,
.wf-name-input {
padding: 6px 10px;
border: 1px solid #ddd;
border-radius: 8px;
font-size: 0.82rem;
background: #fff;
color: #333;
outline: none;
}
.wf-name-input { flex: 0 1 220px; font-weight: 600; }
.wf-name-input:focus { border-color: #007aff; }
body.dark .designer-toolbar select,
body.dark .wf-name-input { background: #222; border-color: #3a3a3a; color: #ccc; }

.wf-btn {
padding: 6px 12px;
border: 1px solid #ccc;
border-radius: 8px;
background: none;
color: inherit;
font-size: 0.82rem;
cursor: pointer;
transition: background 0.2s, border-color 0.2s;
white-space: nowrap;
}
.wf-btn:hover { background: rgba(0,0,0,0.04); border-color: #aaa; }
body.dark .wf-btn { border-color: #444; }
body.dark .wf-btn:hover { background: rgba(255,255,255,0.05); }
.wf-btn.primary { background: #ff3621; border-color: #ff3621; color: #fff; font-weight: 600; }
.wf-btn.primary:hover { background: #e62f1c; }
.wf-btn.primary.running { background: #555; border-color: #555; }
.wf-btn.danger:hover { border-color: #c00; color: #c00; }
.wf-btn.dirty::after { content: " •"; color: #ff3621; }

.wf-status { font-size: 0.78rem; opacity: 0.6; margin-left: auto; max-width: 46%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wf-status.error { color: #c00; opacity: 1; }
body.dark .wf-status.error { color: #ff6a5b; }

.designer-canvas-wrap {
flex: 1;
position: relative;
overflow: hidden;
min-height: 0;
cursor: grab;
background-color: #fafafa;
background-image: radial-gradient(circle, rgba(0,0,0,0.13) 1px, transparent 1px);
background-size: 22px 22px;
}
.designer-canvas-wrap:active { cursor: grabbing; }
body.dark .designer-canvas-wrap {
background-color: #161616;
background-image: radial-gradient(circle, rgba(255,255,255,0.09) 1px, transparent 1px);
}
.designer-canvas {
position: absolute;
top: 0; left: 0;
width: 0; height: 0;
transform-origin: 0 0;
}
.designer-edges {
position: absolute;
left: -10000px;
top: -10000px;
width: 20000px;
height: 20000px;
overflow: visible;
pointer-events: none;
}
.wf-edge {
fill: none;
stroke: #9aa3ad;
stroke-width: 2;
pointer-events: none;
}
.wf-edge.selected { stroke: #007aff; stroke-width: 3; }
.wf-edge-feedback { stroke: #ff3621; stroke-dasharray: 7 5; }
.wf-edge-feedback.selected { stroke: #ff3621; stroke-width: 3.5; }
.wf-edge-ghost { stroke: #007aff; stroke-dasharray: 4 4; opacity: 0.7; }
.wf-edge-hit {
fill: none;
stroke: transparent;
stroke-width: 16;
pointer-events: stroke;
cursor: pointer;
}
.wf-edge-label {
font-size: 12px;
fill: #667;
text-anchor: middle;
pointer-events: none;
font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}
body.dark .wf-edge-label { fill: #99a; }
body.dark .wf-edge { stroke: #5a626c; }

.wf-edge-label-input {
position: absolute;
transform: translate(-50%, -50%);
z-index: 30;
padding: 4px 8px;
border: 1px solid #007aff;
border-radius: 6px;
font-size: 0.78rem;
background: #fff;
color: #333;
outline: none;
width: 170px;
}
body.dark .wf-edge-label-input { background: #2a2a2a; color: #ddd; }

.wf-cell {
position: absolute;
width: 240px;
background: #fff;
border: 1.5px solid #d4d8dd;
border-radius: 12px;
box-shadow: 0 2px 10px rgba(0,0,0,0.07);
padding: 8px 10px 10px;
display: flex;
flex-direction: column;
gap: 6px;
cursor: default;
box-sizing: border-box;
}
.wf-cell.selected { border-color: #007aff; box-shadow: 0 3px 14px rgba(0,122,255,0.22); }
body.dark .wf-cell { background: #242424; border-color: #3c4046; }
body.dark .wf-cell.selected { border-color: #4a9bff; }

.wf-cell-header {
display: flex;
align-items: center;
gap: 6px;
cursor: move;
margin: -8px -10px 0;
padding: 8px 10px 2px;
}
.wf-cell-name {
flex: 1;
min-width: 0;
border: none;
background: none;
font-weight: 700;
font-size: 0.86rem;
color: inherit;
outline: none;
cursor: text;
}
.wf-cell-delete {
border: none;
background: none;
color: inherit;
opacity: 0.4;
font-size: 1rem;
cursor: pointer;
padding: 0 2px;
}
.wf-cell-delete:hover { opacity: 1; color: #c00; }

.wf-cell-model {
width: 100%;
padding: 4px 6px;
border: 1px solid #ddd;
border-radius: 6px;
font-size: 0.76rem;
background: #fff;
color: #333;
outline: none;
}
body.dark .wf-cell-model { background: #1d1d1d; border-color: #3a3a3a; color: #ccc; }

.wf-cell-toolsrow { display: flex; align-items: center; justify-content: space-between; gap: 6px; }
.wf-cell-tools-btn {
border: 1px solid #ddd;
border-radius: 6px;
background: none;
color: inherit;
font-size: 0.72rem;
padding: 3px 8px;
cursor: pointer;
}
.wf-cell-tools-btn:hover { border-color: #aaa; background: rgba(0,0,0,0.03); }
body.dark .wf-cell-tools-btn { border-color: #3a3a3a; }

.wf-cell-status {
font-size: 0.7rem;
padding: 2px 8px;
border-radius: 999px;
background: rgba(0,0,0,0.06);
opacity: 0.75;
}
body.dark .wf-cell-status { background: rgba(255,255,255,0.08); }
.wf-status-running { background: #ff3621 !important; color: #fff; opacity: 1; animation: wfPulse 1.2s ease-in-out infinite; }
.wf-status-queued { background: rgba(255,54,33,0.15) !important; color: #ff3621; opacity: 1; }
.wf-status-done { background: #1d9b4e !important; color: #fff; opacity: 1; }
.wf-status-failed { background: #c00 !important; color: #fff; opacity: 1; }
.wf-status-skipped { opacity: 0.4; }
@keyframes wfPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }

.wf-cell-prompt {
width: 100%;
resize: vertical;
min-height: 54px;
max-height: 220px;
border: 1px solid #ddd;
border-radius: 6px;
font-size: 0.76rem;
font-family: inherit;
padding: 6px 8px;
background: #fff;
color: #333;
outline: none;
box-sizing: border-box;
}
.wf-cell-prompt:focus { border-color: #007aff; }
body.dark .wf-cell-prompt { background: #1d1d1d; border-color: #3a3a3a; color: #ccc; }

.wf-port {
position: absolute;
width: 14px;
height: 14px;
border-radius: 50%;
background: #fff;
border: 2.5px solid #9aa3ad;
z-index: 2;
}
body.dark .wf-port { background: #242424; }
.wf-port-in { left: -8px; top: 50%; transform: translateY(-50%); }
.wf-port-out { right: -8px; top: 50%; transform: translateY(-50%); cursor: crosshair; }
.wf-port-out:hover { border-color: #007aff; background: #007aff; }
.wf-port-feedback {
left: 50%; top: -8px; transform: translateX(-50%);
border-style: dashed;
border-color: #ff3621;
}

.designer-drawer {
border-top: 1px solid #e8e8e8;
height: 240px;
display: flex;
flex-direction: column;
flex-shrink: 0;
background: #fff;
}
body.dark .designer-drawer { border-color: #2a2a2a; background: #1c1c1c; }
.designer-drawer.collapsed { height: 38px; }
.designer-drawer.collapsed .designer-drawer-body { display: none; }
.designer-drawer-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 6px 14px;
font-size: 0.82rem;
font-weight: 600;
flex-shrink: 0;
}
.designer-drawer-header .wf-cell-status { margin-left: 8px; }
.designer-drawer-body {
flex: 1;
overflow-y: auto;
padding: 4px 16px 14px;
font-size: 0.84rem;
}
.wf-drawer-hint { opacity: 0.5; font-size: 0.8rem; padding: 8px 0; }
.wf-tr { margin: 6px 0; }
.wf-tr-tool-call, .wf-tr-tool-result, .wf-tr-info {
font-family: ui-monospace, Menlo, monospace;
font-size: 0.74rem;
color: #3568a8;
background: rgba(0,122,255,0.07);
border-radius: 6px;
padding: 4px 8px;
white-space: pre-wrap;
word-break: break-word;
}
body.dark .wf-tr-tool-call, body.dark .wf-tr-tool-result, body.dark .wf-tr-info { color: #7fb0e8; }
.wf-tr-error { color: #c00; font-size: 0.78rem; }
body.dark .wf-tr-error { color: #ff6a5b; }
.wf-tr-verdict {
border-left: 3px solid #ff3621;
padding: 4px 10px;
font-size: 0.8rem;
font-weight: 600;
background: rgba(255,54,33,0.06);
border-radius: 0 6px 6px 0;
white-space: pre-wrap;
}
.wf-tr-output { border-top: 1px dashed #ddd; padding-top: 8px; }
body.dark .wf-tr-output { border-color: #3a3a3a; }

.wf-tools-group {
font-size: 0.72rem;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.04em;
opacity: 0.5;
margin: 12px 0 4px;
}
.wf-tools-row {
display: flex;
align-items: baseline;
gap: 8px;
padding: 3px 2px;
font-size: 0.8rem;
cursor: pointer;
border-radius: 6px;
}
.wf-tools-row:hover { background: rgba(0,0,0,0.03); }
body.dark .wf-tools-row:hover { background: rgba(255,255,255,0.04); }
.wf-tools-name { font-family: ui-monospace, Menlo, monospace; font-size: 0.74rem; }
.wf-tools-desc { opacity: 0.45; font-size: 0.72rem; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Per-cell feedback loop cap */
.wf-cell-loopcap {
display: flex;
align-items: center;
gap: 3px;
font-size: 0.74rem;
opacity: 0.75;
cursor: help;
}
.wf-cell-loopcap input {
width: 34px;
padding: 2px 4px;
border: 1px solid #ddd;
border-radius: 6px;
font-size: 0.72rem;
background: #fff;
color: #333;
outline: none;
text-align: center;
}
body.dark .wf-cell-loopcap input { background: #1d1d1d; border-color: #3a3a3a; color: #ccc; }
Binary file added docs/designer.png
View file
Open in desktop
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Loading