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CHANGELOG
September 14, 2026

IntelliJ Plugin v0.491.0 Release Notes

Changes below are new since the last stable IntelliJ plugin, v0.488.0-stable.

Improvements

  • The agent now asks for your approval before reading a file that looks sensitive — .env files, private keys and certificates, and credential- or secret-named files — as well as any file excluded by your .augmentignore. Directory listings are unaffected, and .gitignore is still not treated as a read boundary.
  • MCP servers reached over HTTP, SSE, or Streamable HTTP now go through your configured HTTP proxy, so MCP tools work on machines that require a proxy for outbound traffic.
  • Skills with invalid SKILL.md frontmatter are now shown in Settings with an actionable error instead of being silently dropped. An invalid skill also no longer hides a valid skill of the same name.

Reliability & Performance

  • The plugin's sidecar process can now use up to 4096 MB of heap, instead of Node's default ceiling of roughly 1.7 GB, so loading a very large conversation no longer exhausts memory. If it still runs out, you now get an explicit out-of-memory message instead of the sidecar disappearing silently. The ceiling can be overridden with the -Daugment.sidecar.maxOldSpaceSizeMb IDE system property.
  • Chat now automatically retries a response that is interrupted part-way through the stream, instead of ending the turn with an error you have to resend.
  • Opening Find Action no longer freezes the UI while the BYOK actions read your stored credentials; that lookup now runs off the UI thread.
  • After a restart, a turn that was interrupted now stays finished. Previously late startup loading could revive it, leaving the conversation appearing to still generate with tool calls stuck unresolved.

Bug Fixes

  • Fixed remote tool integrations (GitHub, Linear, Notion, and others) disappearing from Settings when the first tool fetch happened before sign-in completed. The list now heals as soon as you sign in, instead of staying empty for up to an hour or until you restart the IDE.
  • Fixed the agent being unable to read a file by absolute path from outside the project's content roots, such as a plugin-installed skill under ~/.augment/skills/.
  • Fixed a response that hits the model's output limit with no tool call ending as a silently truncated success. It is now surfaced as an interrupted response.
  • Fixed agent checkpoints failing to save for files in deeply nested workspaces, where the generated checkpoint filename exceeded the filesystem's limit. Existing checkpoint filenames are preserved.
  • Fixed a git checkout that deletes and immediately recreates a file racing the file watcher into deleting the freshly recreated file.
  • Fixed a chat message whose Markdown could not be parsed breaking the rendered response. It now shows an inline "Failed to render Markdown." notice, and rapid streaming updates always settle on the latest content.
  • Fixed a failed MCP Tool Search setting write in Settings being reported as a load failure, which made the whole MCP server list look broken.