v1.1.54: Skill URL Discovery, More Stable ACP File Writing, Clearer Model Errors
Release Date: February 11, 2026
One-Sentence Summary
This update completes the "most common pitfalls in major versions": Skills can be auto-discovered via URL, ACP file writing automatically creates new files, model selection errors provide clear events and error types, and desktop/TUI fixed a batch of high-frequency issues.
New Feature: Skill Auto-Discovery via URL
What's Updated?
OpenCode added Skill URL discovery capability based on well-known RFC, making subsequent Skill integration via URL smoother.
What's the Use for You?
Previously you needed to manually find Skill entry points; now you can go through the discovery process directly from standard URLs, especially suitable for teams to uniformly distribute Skills.
How to Use?
👉 Full Tutorial: Skills Advanced
👉 Official Docs: Agents
Quick Experience:
- First confirm your Skill source address is publicly accessible.
- Configure and trigger loading according to existing Skill process in your project.
- Observe whether the corresponding Skill is auto-discovered and loaded via URL.
New Feature: ACP Auto-Creates Non-Existent Files When Writing
What's Updated?
When writing files via ACP channel, if the target file doesn't exist, OpenCode now automatically creates the file before writing.
What's the Use for You?
When you execute write operations in IDE + ACP scenarios, it no longer fails directly because "file hasn't been created yet", making automation scripts more stable.
How to Use?
👉 Full Tutorial: ACP Protocol
👉 Official Docs: ACP Support
Quick Experience:
- Start ACP according to tutorial (
opencode acp). - Let Agent write to a non-existent path.
- Confirm file is created and written successfully.
New Feature: Enhanced Model Selection Error Events and Error Types
What's Updated?
Added session.error event for invalid model selection; also added ContextOverflowError, and improved model variant availability check logic.
What's the Use for You?
Troubleshooting model issues is no longer "silent failure" or vague errors. Logs and events will tell you faster what went wrong.
How to Use?
👉 Full Tutorial: Config Basics
👉 Extended Tutorial: Thinking Depth Configuration
👉 Official Docs: Models
Quick Experience:
- Deliberately fill in a non-existent model ID in config.
- Start a session and observe event or log output.
- Change back to an available model, verify session returns to normal.
Bug Fix: Multiple Stability Fixes for Desktop / TUI / Core
Previous Issue
Including Homebrew upgrade occasionally requiring multiple runs, app terminal replay anomalies, unstable behavior after workspace reset, etc.
Current Status
These issues are centrally fixed in v1.1.54, with significantly improved stability for desktop, TUI, and core workflows.
Should You Upgrade?
| Situation | Recommendation |
|---|---|
| You're using ACP or IDE integration | ✅ Recommend immediate upgrade |
| You frequently switch models/variants | ✅ Recommend immediate upgrade |
| You mainly use desktop | ✅ Recommend upgrade |
| Everything works fine | Can wait for next time |
Upgrade Command:
opencode upgradeTechnical Details (Skippable)
Click to expand full update list
Core (Excerpt)
- Publish session.error event for invalid model selection
- Create file if it doesn't exist when writing via ACP
- Add new ContextOverflowError type
- Add skill discovery from URLs via well-known RFC
- Parse mid-stream OpenAI response errors to prevent infinite retries
- Resolve Homebrew upgrade requiring multiple runs
TUI (Excerpt)
- Use sender color for queued messages in TUI
- Add --fork flag to duplicate sessions before continuing
- Improve skills dialog readability
Desktop (Excerpt)
- Fix terminal replay issues in app
- Fix workspace reset and session navigation issues
- Improve prompt input, sidebar, and file tree interactions
- Add native Wayland toggle and more menu bar capabilities
Official Release Notes: