Lots of Failed to apply search-replace: Search block did not match any content in the target file.

[beaugast]

Session ID: v2:ac0af2f5-ec23-4324-9852-96fd9d009b69
Session Schema: v2.0
Pro User ID: ****iLCm

Issue Description (required)

Getting a lot of Failed to apply search-replace: Search block did not match any content in the target file.

Expected Behavior (required)

Write to the file

Actual Behavior (required)

Failed writing

System Information

• Dyad Version: 1.5.0-beta.1
• Platform: win32
• Architecture: x64
• Node Version: v22.14.0
• PNPM Version: 10.18.3
• Node Path: C:\Program Files\nodejs\node.exe
• Pro User ID: ****iLCm
• Telemetry ID: b05f6e4b-e2b6-44d2-aaa1-151815ce1fcb
• Model: anthropic:claude-opus-4-8 | customId: undefined

Settings

• Selected Model: anthropic:claude-opus-4-8
• Chat Mode: local-agent
• Auto Approve Changes: n/a
• Dyad Pro Enabled: true
• Thinking Budget: medium
• Runtime Mode: host
• Release Channel: beta
• Auto Fix Problems: false
• Native Git: true

Logs

}
  source: 'remote',
  version: '2026-06-27T21:28:56.747Z',
  expiresAt: '2026-06-27T22:28:56.747Z'
}
  source: 'remote',
  version: '2026-06-27T21:28:56.747Z',
  providerCount: 6
}
  source: 'remote',
  version: '2026-06-27T21:28:56.747Z',
  expiresAt: '2026-06-27T22:28:56.747Z'
}
  providerId: 'anthropic',
  source: 'remote',
  version: '2026-06-27T21:28:56.747Z',
  hasProviderModels: true
}
[2026-06-27 18:14:50.298] [warn]  (retryWithRateLimit) Get Supabase project logs for hprrhcxuelwrppvqqhsm: Rate limited (attempt 1/11), honoring Retry-After: 60000ms

[dyad-assistant]

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

• Unable to Apply Search-Replace #1690: Same issue: search-replace edits fail to apply to files (confidence: high)
  You might want to try Dyad has a fallback that regenerates full files when search-replace fails. Also, search-replace can fail if a file was changed from another chat after the message was sent. Try limiting concurrent chats and updating to t based on this earlier comment.
• [session report] search replace fails #2421: Same symptom: search-replace fails repeatedly during editing (confidence: high)
• [session report] Search/replace mismatch consuming credits #2946: Search-replace mismatch causing wasted credits (confidence: medium)

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

[wwwillchen]

Hi @beaugast - thanks for uploading this - we'll have a fix for this in this week's release.

The problem was that the AI was trying to replace part of a line in AI_RULES.md (which has long lines b/c of markdown bullet points). We'll fix this by supporting partial line updates.