feat: color-palette-generator - agentic image color extraction with K… by A-VISHAL · Pull Request #34 · Cyborg-Network/Oxtools

A-VISHAL · 2026-05-06T10:38:12Z

…Means + LLM refinement

Oxtools Submission

Project name: [Your project name]
Contributor: [@your-github-handle]
Demo: [Link to Loom or YouTube recording — required]

What does this tool do?

Write 2–3 sentences describing the tool, the problem it solves, and how it uses the Oxlo API.

Submission checklist

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Structure

My project is in its own directory under projects/[my-project-name]/
I have not placed any files directly in the repository root

Required files

Dockerfile is present and docker build . succeeds
docker-compose.yml is present and docker compose up starts the app
oxlo-manifest.json is present and all fields are filled in
.env.example lists every environment variable the project needs (with empty values)
README.md is present with setup instructions a reviewer can follow exactly

Security

No API keys, private keys, or secrets are hardcoded anywhere in the codebase
My actual .env file is not included in this PR
I have verified my diff with git grep -i "api_key" and found no leaks

Oxlo API

The tool makes at least one functional call to the Oxlo API
The API key is read from the OXLO_API_KEY environment variable

For maintainers

Security scan passed — no secrets in diff
docker build . succeeded locally
docker compose up ran successfully and app is reachable
Oxlo API integration verified
Approved for merge

…rk/Oxtools into screenshot_accuracy

…Means + LLM refinement

vercel · 2026-05-06T10:38:18Z

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Project	Deployment	Actions	Updated (UTC)
oxtools	Ready	Preview, Comment	May 20, 2026 1:09pm

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Pull request overview

Adds a new tier-2 “Color Palette Generator” tool that extracts dominant image colors (KMeans) and optionally refines them via an Oxlo-backed LLM pipeline, plus frontend updates to support image upload, long-running execution, and richer palette/image previews.

Changes:

Introduces a new Python tool (image-palette-extractor) with KMeans extraction, LangGraph orchestration, and LLM refinement.
Updates the frontend tool definition and tool execution hook for tier-2 image workflows (upload, compression, longer timeouts).
Adds/updates result rendering to show early extracted colors and an interactive image hover/pixel-inspection viewer.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
services/python-tools/tools/image-palette-extractor/tool.py	Tool entrypoint + streaming output markers + fallback behavior
services/python-tools/tools/image-palette-extractor/requirements.txt	Tool-specific Python dependencies
services/python-tools/tools/image-palette-extractor/pipeline.py	LangGraph state machine for validate→extract→refine→format
services/python-tools/tools/image-palette-extractor/llm_refiner.py	LLM call + JSON extraction + WCAG “compliance” wrapper
services/python-tools/tools/image-palette-extractor/config.py	Oxlo ChatOpenAI client config + refinement system prompt
services/python-tools/tools/image-palette-extractor/color_extractor.py	Base64 image decoding + KMeans clustering + preview/pixel-map helper
app/src/lib/tools/color-palette.ts	Switches tool to tier2 + image input + model metadata
app/src/hooks/use-tool-execution.ts	Adds per-tool timeouts and abort handling
app/src/components/result-viewer.tsx	Parses new output markers + renders early extracted colors + uses new viewer
app/src/components/color-palette-viewer.tsx	New interactive image/palette viewer (canvas hover inspection)
app/src/app/tools/[toolId]/page.tsx	Client-side image validation/compression + tier2 execution wiring

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+            # Re-encode resized image to data URI (jpeg to reduce size)
+            buffer = io.BytesIO()
+            image.save(buffer, format="JPEG", quality=85)
+            buffer.seek(0)
+            resized_b64 = buffer.getvalue()
+            from base64 import b64encode
+
+            data_uri = f"{header};base64,{b64encode(resized_b64).decode('utf-8')}"
+


+            image_array = np.array(image)
+
+            # Determine sampling step to keep pixel count <= max_pixels
+            total = width * height
+            pixels = []
+            if max_pixels and max_pixels > 0:
+                if total <= max_pixels:
+                    step = 1
+                else:
+                    # sample roughly uniformly using a square step
+                    step = int(max(1, (total / max_pixels) ** 0.5))
+
+                for y in range(0, height, step):
+                    for x in range(0, width, step):
+                        rgb = image_array[y, x]
+                        hex_color = self._rgb_to_hex(tuple(rgb))
+                        pixels.append({"x": int(x), "y": int(y), "color": hex_color})
+            else:
+                step = 0


+                        "roles": {
+                            "primary": extracted_colors[0] if extracted_colors else "#000000",
+                            "secondary": extracted_colors[1] if len(extracted_colors) > 1 else extracted_colors[0],
+                            "accent": extracted_colors[2] if len(extracted_colors) > 2 else extracted_colors[0],
+                            "background": "#ffffff",
+                            "surface": "#f5f5f5",
+                            "text": "#333333",
+                            "muted": "#999999",


+                    # CREATE FALLBACK PALETTE from extracted colors
+                    result = {
+                        "success": True,
+                        "palette": {color: color for color in extracted_colors[:min(num_colors, len(extracted_colors))]},
+                        "roles": {
+                            "primary": extracted_colors[0] if extracted_colors else "#000000",
+                            "secondary": extracted_colors[1] if len(extracted_colors) > 1 else extracted_colors[0],
+                            "accent": extracted_colors[2] if len(extracted_colors) > 2 else extracted_colors[0],
+                            "background": "#ffffff",
+                            "surface": "#f5f5f5",
+                            "text": "#333333",
+                            "muted": "#999999",
+                        },


ms-shashank · 2026-05-16T18:52:30Z

+def _load_module_from_file(filename: str):
+    """Load a module explicitly from a file path to avoid collisions."""
+    module_name = filename.replace('.py', '')
+
+    # Clear from sys.modules cache to force fresh load
+    if module_name in sys.modules:
+        del sys.modules[module_name]
+


Please look into this is as well, it can cause issues further, so have config.py file for this and have them imported.

+				if (err instanceof DOMException && err.name === "AbortError") {
+					// Request was aborted (either by timeout or user action)
+					if (!error) {  // Only set timeout error if not already set
+						setError({
+							message: "Request was cancelled. Please try again.",
+							code: "aborted"
+						});
+					}
+					setResult("");
+					return;


@@ -71,6 +105,7 @@ function ToolPageContent({ toolId }: { toolId: string }) {
 	const { canExecute, getToolUsage, trackExecution, redirectToUpgrade } = useAuth();
 	const toolUsage = getToolUsage(tool.id);
 	const [showUpgradeDialog, setShowUpgradeDialog] = useState(false);
+	const [hasExecuted, setHasExecuted] = useState(false);


Resolved conflicts in result-viewer.tsx by accepting HEAD version which includes: - Color palette extraction and display features - Pipeline logs viewer - Extracted colors preview with copy functionality Note: Incoming branch's Edit/Compare tabs and fullscreen editing features should be integrated in a future PR for full feature parity.

ms-shashank · 2026-05-16T18:52:30Z

+def _load_module_from_file(filename: str):
+    """Load a module explicitly from a file path to avoid collisions."""
+    module_name = filename.replace('.py', '')
+
+    # Clear from sys.modules cache to force fresh load
+    if module_name in sys.modules:
+        del sys.modules[module_name]
+


Please look into this is as well, it can cause issues further, so have config.py file for this and have them imported.

ms-shashank · 2026-05-20T12:31:40Z

There is still some extension related codes, please remove the extension related codes and files.

ms-shashank · 2026-05-20T12:31:55Z

-      "chrome-extension://poaainbnlkonlkjiiemhfoflbkobamec"
-    ]
-  },
+	allowedDevOrigins: ["chrome-extension://poaainbnlkonlkjiiemhfoflbkobamec"],


Extension related codes.

ms-shashank · 2026-05-20T12:33:14Z

 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-import "./.next/dev/types/routes.d.ts";
+import "./.next/types/routes.d.ts";


Can you check on this? Why this was edited. Because this files were mentioned not to be edited. So once can you please look into this why this was edited.

….config.ts

Arunmadhavan28 and others added 13 commits April 29, 2026 10:44

feat: improved screenshot accuracy

0e4ace5

feat: reduced latency|multiple pics|live preview

754330c

feat: conflict fix|accuracy fix

7b561b0

feat: PR refactoring fix

625a0b6

feat: context limit 512-> 2048

8ef216e

Merge branch 'dev' into screenshot_accuracy

e895739

feat: docker file overwrite fix

e6e0d08

Merge branch 'screenshot_accuracy' of https://github.com/Cyborg-Netwo…

8f89689

…rk/Oxtools into screenshot_accuracy

Remove duplicate mounted declaration

5bf522e

Fix import location in result-viewer

b7b3d5d

Refactor: resolve OxBot security, performance, and architecture flags

e1ed002

style: biome auto-format and import sorting

3d8960e

feat: color-palette-generator - agentic image color extraction with K…

209731a

…Means + LLM refinement

Copilot AI review requested due to automatic review settings May 6, 2026 10:38

Copilot started reviewing on behalf of A-VISHAL May 6, 2026 10:38 View session

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Copilot AI reviewed May 6, 2026

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fix: biome lint issues

3b3cdc5

vercel Bot deployed to Preview May 6, 2026 11:05 View deployment

fix: biome lint errors

7eebe1b

vercel Bot deployed to Preview May 6, 2026 11:13 View deployment

chore: Biome format and lint fixes; result-viewer XSS fix

5a73d11

vercel Bot deployed to Preview May 6, 2026 11:33 View deployment

Arunmadhavan28 and others added 2 commits May 11, 2026 10:49

major: extension|bi-model|accuracy

fd83804

ms-shashank reviewed May 16, 2026

View reviewed changes

Comment thread app/src/components/usage-counter.tsx

ms-shashank requested changes May 16, 2026

View reviewed changes

Fix usage counter and palette refiner imports

4a86db6

A-VISHAL requested a review from beekay2706 as a code owner May 20, 2026 09:15

vercel Bot had a problem deploying to Preview May 20, 2026 09:15 Failure

Fix execution timeout and Next config

d699d34

vercel Bot deployed to Preview May 20, 2026 10:56 View deployment

ms-shashank requested changes May 20, 2026

View reviewed changes

Revert next-env.d.ts import change; remove extension origin from next…

404100d

….config.ts

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feat: color-palette-generator - agentic image color extraction with K…#34

feat: color-palette-generator - agentic image color extraction with K…#34
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Oxtools Submission

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A-VISHAL commented May 6, 2026 •

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