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CopilotKit

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CopilotKit
The Frontend Stack for Agents & Generative UI. React, Angular, Mobile, Slack, and more. Makers of the AG-UI Protocol

TypeScript · 37409 stars

Beginner friendly Everything

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showcase(ag2): lock Python dependency versions Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 48/100

CopilotKit/CopilotKit#7285 · 1 comment · Opened Sep 18, 2026
showcase(google-adk): lock Python dependency versions Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

CopilotKit/CopilotKit#7284 · 1 comment · Opened Sep 18, 2026
runtime: express and hono are hard dependencies, not optional peers — express 5 apps cannot type-check the adapter Open

bug

Difficulty 5/5 Over a week Newbie friendliness 45/100

CopilotKit/CopilotKit#7276 · 4 comments · Opened Sep 18, 2026
Update Showcase langgraph-api from 0.7.101 to latest stable Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

CopilotKit/CopilotKit#7266 · 1 comment · Opened Sep 18, 2026
Unauthenticated cross-thread read and global wipe on the default in-memory runner Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

CopilotKit/CopilotKit#7198 · 5 comments · Opened Sep 16, 2026
🐛 Bug: Corrupted pasting while configuring Copilokit with cluade agent sdk agentic backend Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 48/100

CopilotKit/CopilotKit#7192 · 2 comments · Opened Sep 16, 2026
pnpm.overrides: 13 security floors no longer exclude the versions their advisories cover Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

CopilotKit/CopilotKit#7166 · 1 comment · Opened Sep 15, 2026
🐛 Bug: input and header slots reject plain FCs (same defect as #7126) Open

bug good first issue

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

CopilotKit/CopilotKit#7158 · 2 comments · Opened Sep 15, 2026
Bug: abortRun sends a thread-wide stop, so a delayed stop can cancel the next run Open

Difficulty 3/5 1-2 days Newbie friendliness 76/100

CopilotKit/CopilotKit#7149 · 3 comments · Opened Sep 15, 2026
ProxiedCopilotRuntimeAgent can retain stale runtimeMode when /info changes Intelligence → SSE Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

CopilotKit/CopilotKit#7130 · 1 comment · Opened Sep 14, 2026
MCP Apps examples: serve the sandbox proxy from a real second origin Open

Difficulty 4/5 3-5 days Newbie friendliness 58/100

CopilotKit/CopilotKit#7119 · 1 comment · Opened Sep 14, 2026
v1 CopilotRuntime resolves agents once, so MCP clients and dynamic actions cannot be per-request Open

bug mcp

Difficulty 5/5 Over a week Newbie friendliness 35/100

CopilotKit/CopilotKit#7116 · 1 comment · Opened Sep 14, 2026
BuiltInAgent Channel: unanswered tool call leaves subsequent turns failing with MissingToolResultsError Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

CopilotKit/CopilotKit#7100 · 2 comments · Opened Sep 11, 2026
🐛 Bug: LangGraph CopilotKit middleware: Adds `runtime.context` to system prompt by default Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 68/100

CopilotKit/CopilotKit#7077 · 1 comment · Opened Sep 11, 2026
Switching between multiple runtime-registered agents does not work Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

CopilotKit/CopilotKit#7016 · 1 comment · Opened Sep 10, 2026
Example: runnable app on the self-managed path (no Node runtime) Open

feature request help wanted

Difficulty 4/5 3-5 days Newbie friendliness 68/100

CopilotKit/CopilotKit#7015 · 3 comments · Opened Sep 10, 2026
[Bug]: Standard interrupt resumes reuse the completed wire run ID Open

CopilotKit/CopilotKit#6999 · 1 comment · 1 assignee · Opened Sep 9, 2026
🚀 Feature Request: restore Open Generative UI activity from a messages snapshot Open

CopilotKit/CopilotKit#6981 · 1 comment · 1 assignee · Opened Sep 9, 2026
🐛 Bug: agent/stop cannot cancel a single run by runId Open

CopilotKit/CopilotKit#6978 · 1 comment · 1 assignee · Opened Sep 9, 2026
🐛 Bug: second send pre-empts an in-flight run during the `await onInitialize` window (serialization guards fail open) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 45/100

CopilotKit/CopilotKit#6937 · Opened Sep 7, 2026
showcase: dynamic-A2UI demo runs three different system prompts across integrations Open

showcase-drift

Difficulty 4/5 3-5 days Newbie friendliness 45/100

CopilotKit/CopilotKit#6936 · 1 comment · Opened Sep 7, 2026
docs(ag2): AG2 integration docs are still on the pre-1.0 autogen API Open

CopilotKit/CopilotKit#6933 · 1 comment · 1 assignee · Opened Sep 7, 2026
🐛 Bug: single-route endpoint rejects multipart, so POST /transcribe is unreachable (v1 and v2) Open

bug

CopilotKit/CopilotKit#6928 · 3 comments · 1 assignee · Opened Sep 6, 2026
@ag-ui/mcp-middleware@0.0.1 pins @ag-ui/client 0.0.54, nesting a 7.3 MB duplicate tree in every runtime install Open

dependencies-core

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

CopilotKit/CopilotKit#6921 · 3 comments · Opened Sep 5, 2026
v2 runtime on Cloudflare Workers: agent/run returns 200 with an empty SSE body (EventEncoder.encode() writes strings into a byte stream) Open

CopilotKit/CopilotKit#6919 · 2 comments · 1 assignee · Opened Sep 5, 2026
MCP Apps sandbox: serve the proxy from a separate origin (SEP-1865 requires Host and Sandbox to differ) Open

CopilotKit/CopilotKit#6910 · 2 comments · 1 assignee · Opened Sep 4, 2026
🐛 Bug: NodeFetchHandler hung Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 50/100

CopilotKit/CopilotKit#6838 · 3 comments · Opened Sep 2, 2026
Tracking: MCP Apps host conformance gaps (display-mode, update-model-context, host-context, theme propagation, ...) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

CopilotKit/CopilotKit#6824 · 1 comment · Opened Sep 1, 2026
Extract a shared MCP Apps host package to remove per-framework duplication Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

CopilotKit/CopilotKit#6823 · 4 comments · Opened Sep 1, 2026
🚀 Feature Request: Paginate /connect replay by run window (limit/cursor), not a single runId Open

feature request help wanted

CopilotKit/CopilotKit#6822 · 5 comments · 1 assignee · Opened Sep 1, 2026
chore(react-textarea): mark CopilotTextarea declarations as deprecated Open

reserved for students

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

CopilotKit/CopilotKit#6819 · 1 comment · Opened Sep 1, 2026
Channels: support managed cross-surface turns into an existing provider conversation Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

CopilotKit/CopilotKit#6751 · 2 comments · Opened Aug 28, 2026
Angular: DX and API feedback Open

CopilotKit/CopilotKit#6714 · 2 comments · 2 assignees · Opened Aug 26, 2026
channels-slack: no supported way to trigger a proactive/scheduled agent turn (conversation store always rebuilds history from live Slack messages) Open

Difficulty 5/5 Over a week Newbie friendliness 32/100

CopilotKit/CopilotKit#6709 · 1 comment · Opened Aug 26, 2026
agUiResource Open

CopilotKit/CopilotKit#6677 · 7 comments · 1 reaction · 1 assignee · Opened Aug 24, 2026
🐛 Bug: type mismatch between CopilotRuntime and ag-ui Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

CopilotKit/CopilotKit#6673 · 4 comments · Opened Aug 24, 2026
Angular: Upgrade the ADK starter to Angular 22 Open

Accepting PRs feature request

CopilotKit/CopilotKit#6643 · 6 comments · 1 assignee · Opened Aug 21, 2026
Testing: Add Angular to automated visual regression testing Open

feature request

CopilotKit/CopilotKit#6641 · 1 comment · 1 assignee · Opened Aug 21, 2026
Refactoring: Make agent thread changes observable Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

CopilotKit/CopilotKit#6574 · 2 comments · 1 reaction · Opened Aug 19, 2026
Human-in-the-loop gate silently never runs while the model reports it did: Angular resolves a bus envelope, and AG-UI ToolMessage has no name field Open

Difficulty 4/5 3-5 days Newbie friendliness 56/100

CopilotKit/CopilotKit#6571 · 4 comments · 1 reaction · Opened Aug 19, 2026
Frontend tool descriptors arrive in three shapes; reading the wrong one silently yields an empty schema Open

reserved for students

Difficulty 4/5 3-5 days Newbie friendliness 48/100

CopilotKit/CopilotKit#6570 · 2 comments · 1 reaction · Opened Aug 19, 2026
🚀 Feature Request: Make Angular `effect` dependencies explicit Open

feature request good first issue

CopilotKit/CopilotKit#6561 · 3 comments · 1 assignee · Opened Aug 19, 2026
🐛 Bug: A2UI skeleton "Building interface" never resolves — no ACTIVITY_SNAPSHOT / STATE_SNAPSHOT emitted with BuiltInAgent Open

bug reserved for students

Difficulty 4/5 3-5 days Newbie friendliness 48/100

CopilotKit/CopilotKit#6526 · 2 comments · 1 reaction · Opened Aug 17, 2026
🚀 Feature Request: Angular — does `injectAgentStore` need to return `Signal<AgentStore>`? Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

CopilotKit/CopilotKit#6508 · 3 comments · 1 reaction · Opened Aug 15, 2026
🚀 Feature Request: Angular — add `sendMessage` to `AgentStore` Open

Difficulty 4/5 3-5 days Newbie friendliness 52/100

CopilotKit/CopilotKit#6507 · 3 comments · 1 reaction · Opened Aug 15, 2026
fix(react, vue): popup wrapper background masks rounded corners Open

reserved for students

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

CopilotKit/CopilotKit#6472 · 1 comment · Opened Aug 13, 2026
pnpm.overrides contradict package declarations: runtime tests pino 10 but ships pino 9; bare next override forces a two-major jump Open

dependencies-core

CopilotKit/CopilotKit#6423 · 6 comments · 1 reaction · 1 assignee · Opened Aug 6, 2026
showcase: harness D6 probes are not run by any CI job — cell regressions and dependency rot go undetected Open

showcase-drift

Difficulty 4/5 3-5 days Newbie friendliness 52/100

CopilotKit/CopilotKit#6422 · 2 comments · 1 reaction · Opened Aug 6, 2026
🐛 Bug: v1 surfaces orphaned by the v1.50.0 re-implementation (readable context; server-side actions + MCP) Open

bug

CopilotKit/CopilotKit#6408 · 15 comments · 1 reaction · 1 assignee · Opened Aug 5, 2026
showcase/pydantic-ai: gen-ui-agent and shared-state-read D6 probes red on main (fixture rot, ungated) Open

bug showcase-drift

Difficulty 5/5 Over a week Newbie friendliness 35/100

CopilotKit/CopilotKit#6381 · 4 comments · 1 reaction · Opened Aug 5, 2026

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