anomalyco/opencode
1
0
Fork 0
mirror of https://github.com/anomalyco/opencode.git synced 2026-07-22 02:05:26 -04:00
Code Issues 5.9k Packages Projects Releases 19 Wiki Activity

Error message: JSON Parse error: Unterminated string] error with Kimi k 2.5 and huggingface provider in build mode #8726

New Issue
Open
opened 2026-02-16 18:10:40 -05:00 by yindo · 1 comment
yindo commented 2026-02-16 18:10:40 -05:00
Owner
Copy Link
Copy Source

Originally created by @aditya-oss-prog on GitHub (Feb 6, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

build mode edit tool fails with JSON Parse error on large multi-line newString payloads

Bug Summary

after planning build model fails with a JSON Parse error: Unterminated string when the newString parameter contains a large multi-line payload with embedded code blocks, markdown formatting, and escaped characters. The JSON serialization of the edit payload appears to produce an unterminated string, causing the JSON parser to reject the input before the tool can execute.

Error Message

⚙ invalid [tool=edit, error=Invalid input for tool edit: JSON parsing failed: 
Text: {"filePath": "IMPLEMENTATION_PLAN.md", "oldString": "**Document Version**: 1.0\n**Last Updated**: ..."}
Error message: JSON Parse error: Unterminated string]

Plugins

No plugins just opencode with huggingface provider

OpenCode version

1.1.40

Steps to reproduce

  1. create a plan in plan mode.

  2. ask it to write to file in build mode it can be implementation plan file or any code file.

Screenshot and/or share link

No response

Operating System

macos Tahoe 26.2 and ubuntu 24.04 in wsl

Terminal

macos default terminal and windows terminal wsl window

Originally created by @aditya-oss-prog on GitHub (Feb 6, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description ## build mode edit tool fails with JSON Parse error on large multi-line `newString` payloads ### Bug Summary after planning build model fails with a `JSON Parse error: Unterminated string` when the `newString` parameter contains a large multi-line payload with embedded code blocks, markdown formatting, and escaped characters. The JSON serialization of the edit payload appears to produce an unterminated string, causing the JSON parser to reject the input before the tool can execute. ### Error Message ```javascript ⚙ invalid [tool=edit, error=Invalid input for tool edit: JSON parsing failed: Text: {"filePath": "IMPLEMENTATION_PLAN.md", "oldString": "**Document Version**: 1.0\n**Last Updated**: ..."} Error message: JSON Parse error: Unterminated string] ``` ### Plugins No plugins just opencode with huggingface provider ### OpenCode version 1.1.40 ### Steps to reproduce 1. create a plan in plan mode. 2. ask it to write to file in build mode it can be implementation plan file or any code file. ### Screenshot and/or share link _No response_ ### Operating System macos Tahoe 26.2 and ubuntu 24.04 in wsl ### Terminal macos default terminal and windows terminal wsl window
yindo added the windowsbug labels 2026-02-16 18:10:40 -05:00
yindo commented 2026-02-16 18:10:40 -05:00
Author
Owner
Copy Link
Copy Source

@github-actions[bot] commented on GitHub (Feb 6, 2026):

This issue might be a duplicate of existing issues. Please check:

  • #10755: JSON Parse error: Unterminated string with gpt-5.2-codex model - same error message occurring during plan+build workflow
  • #11630: Write tool JSON parsing error with large files and special characters - reports unterminated string errors when writing content with embedded code blocks
  • #12412: Plan mode unable to save due to malformed write payload - malformed JSON in write tool with large payloads, similar root cause
  • #12425: JSON Parse error: Expected '}' - similar JSON parsing failures when writing files with large content

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Feb 6, 2026): This issue might be a duplicate of existing issues. Please check: - #10755: JSON Parse error: Unterminated string with gpt-5.2-codex model - same error message occurring during plan+build workflow - #11630: Write tool JSON parsing error with large files and special characters - reports unterminated string errors when writing content with embedded code blocks - #12412: Plan mode unable to save due to malformed write payload - malformed JSON in write tool with large payloads, similar root cause - #12425: JSON Parse error: Expected '}' - similar JSON parsing failures when writing files with large content Feel free to ignore if none of these address your specific case.
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
acp
bad
bug
discussion
docs
documentation
enhancement
extension
good first issue
growth
help-wanted
mcp
model-problem
needs:compliance
nix
opentui
perf
pull-request
Mirrored from GitHub Pull Request
 tui
web
windows
zen
No Label bug windows
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
yindo
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: anomalyco/opencode#8726
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?