Issues

• Can't fetch available MCPs from custom registery

  triage
  Bug

  github/copilot-cli#4949 · Filter by author MElkady opened on Sep 23, 2026
  2

• HTTP 400

  triage
  github/copilot-cli#4947 · Filter by author phuongnam467 opened on Sep 23, 2026

• HTTP 400 content[].thinking after a background shell completion notification

  area:modelsarea:sessions
  Bug

  github/copilot-cli#4946 · Filter by author eliam opened on Sep 23, 2026
  5

• Cancelling/closing an ask_user form silently discards all previously answered fields

  area:tools
  Bug

  github/copilot-cli#4945 · Filter by author zbrownell opened on Sep 22, 2026

• ask_user form: pressing Esc silently discards the entire form instead of clearing current input

  area:input-keyboardarea:tools
  Bug

  github/copilot-cli#4943 · Filter by author zbrownell opened on Sep 22, 2026

• session_store_sql returns deleted sessions forever: no DELETE verb on POST /agents/analytics/query or /agents/sessions/*

  area:context-memoryarea:sessions
  Bug

  github/copilot-cli#4942 · Filter by author willmarkley opened on Sep 22, 2026

• reasoning_effort binding to claude-haiku-4.5 model fails on sub-agent invocation

  area:agentsarea:models
  Bug

  github/copilot-cli#4941 · Filter by author Jon-Tindel-Sonova opened on Sep 22, 2026

• Allow subagents.maxConcurrency for BYOK / non usage-based accounts (currently hard-capped at 2)

  area:agentsarea:configurationarea:models
  Feature

  github/copilot-cli#4940 · Filter by author brunogsystem opened on Sep 22, 2026

• Unable to delete old remote sessions

  area:sessions
  Bug

  github/copilot-cli#4939 · Filter by author mortsource opened on Sep 22, 2026

• SessionConfig.GitHubToken / GitHubTokenProvider still route to api.github.com instead of the GHEC Data Residency tenant endpoint, even with CopilotClientMode.Empty — same defect class as #4527, unresolved on the SDK session-level path

  area:authenticationarea:enterprisearea:networking
  Bug

  github/copilot-cli#4938 · Filter by author rbenelrhazi opened on Sep 22, 2026
  1

• Failed to install plugin: Access is denied. (os error 5)

  triage
  Bug

  github/copilot-cli#4937 · Filter by author jaredrakoff opened on Sep 22, 2026

• Allow a credential command in providers.json and managed settings so BYOK providers work without a per-invocation launcher

  triage
  Feature

  github/copilot-cli#4936 · Filter by author peterj opened on Sep 22, 2026

• Built-in Slack MCP integration requests full scope superset even when only read tools are exposed

  triage
  Bug

  github/copilot-cli#4935 · Filter by author rradillen opened on Sep 22, 2026
  1

• Passive Prompt Coaching for Copilot CLI

  triage
  Feature

  github/copilot-cli#4934 · Filter by author rokeanemicrosoft opened on Sep 22, 2026

• Managed plugins are never re-synced from the server after install — local edits/deletions to plugin content are neither detected nor corrected (enforcement silently defeatable)

  triage
  Bug

  github/copilot-cli#4933 · Filter by author rbob45359 opened on Sep 22, 2026

• Built-in skill github-pr-media cannot run: gh auth token is empty in a cloud agent session, and the endpoint rejects Bearer

  triage
  Bug

  github/copilot-cli#4932 · Filter by author CynthiaLuijkx opened on Sep 22, 2026

• Cloud agent: the built-in Playwright MCP session is already closed at the first tool call, and recovery reports it as browser OAuth required

  triage
  Bug

  github/copilot-cli#4931 · Filter by author CynthiaLuijkx opened on Sep 22, 2026
  1

• Cloud agent: viewing any image ends the session with CAPIError: 400 The image data you provided does not represent a valid image

  triage
  Bug

  github/copilot-cli#4930 · Filter by author CynthiaLuijkx opened on Sep 22, 2026
  1

• Process-local auth token stops refreshing; all prompts fail until restart

  triage
  github/copilot-cli#4929 · Filter by author NGloreous opened on Sep 22, 2026
  13

• Windows: multi-GiB native runtime memory bursts in desktop-hosted CLI 1.0.87-0, followed by same-process release

  triage
  github/copilot-cli#4928 · Filter by author pchung13 opened on Sep 21, 2026

• GPT-6 Astra: long_context tier reports 872k prompt tokens while model capabilities report 1,050k

  triage
  Bug

  github/copilot-cli#4927 · Filter by author RustyHenok opened on Sep 21, 2026
  1

• Using playwright-cli tool classifies URLs as directories for permission prompting

  triage
  Bug

  github/copilot-cli#4925 · Filter by author Blackbaud-JeremyRyan opened on Sep 21, 2026

• Desktop app: custom agents from .github/agents missing in fresh worktree sessions — config discovery runs before the deferred checkout populates the tree and agents are never re-scanned

  triage
  github/copilot-cli#4924 · Filter by author TwoPatient opened on Sep 21, 2026
  2

• MCP OAuth: Figma token exchange fails with "Failed to parse server response" (distinct from #4870 / #4906)

  triage
  github/copilot-cli#4923 · Filter by author Fweddi opened on Sep 21, 2026

• Feature request: Attach an existing chat or session to a Project

  triage
  Feature

  github/copilot-cli#4922 · Filter by author sheu247 opened on Sep 21, 2026