Previously, when a user created a task with a URL-only prompt (e.g.,
`Let's work on https://github.com/coder/coder/issues/21138`), the LLM
would hallucinate what the URL content might be about - generating names
like "Fix GitHub Actions workflow issue" when the actual issue was
unrelated.
Add examples to the task naming system prompt showing expected behavior
for GitHub issue and PR URLs, teaching the model to use visible URL
parts (repo name, issue/PR number) rather than guessing content.
Co-authored-by: blink-so[bot] <211532188+blink-so[bot]@users.noreply.github.com>
## Problem
Tasks currently only expose a machine-friendly name field (e.g.
`task-python-debug-a1b2`), but this value is primarily an identifier
rather than a clean, descriptive label. We need a separate
display-friendly name for use in the UI.
This PR introduces a new `display_name` field and updates the task-name
generation flow. The Claude system prompt was updated to return valid
JSON with both `name` and `display_name`. The name generation logic
follows a fallback chain (Anthropic > prompt sanitization > random
fallback). To make task names more closely resemble their display names,
the legacy `task-` prefix has been removed. For context, PR
https://github.com/coder/coder/pull/20834 introduced a small Task icon
to the workspace list to help identify workspaces associated to tasks.
## Changes
- Database migration: Added `display_name` column to tasks table
- Updated system prompt to generate both task name and display name as
valid JSON
- Task name generation now follows a fallback chain: Anthropic > prompt
sanitization > random fallback
- Removed `task-` prefix from task names to allow more descriptive names
- Note: PR https://github.com/coder/coder/pull/20834 adds a Task icon to
workspaces in the workspace list to distinguish task-created workspaces
**Note:** UI changes will be addressed in a follow-up PR
Related to: https://github.com/coder/coder/issues/20801
The previous logic verified a generated name was valid, _and then
appended a suffix to it_. This was flawed as it would allow a 32
character name, and then append an extra 5 characters to it.
Instead we now append the suffix _and then_ verify it is valid.
Closes https://github.com/coder/coder/issues/18159
If an Anthropic API key is available, we call out to Claude to generate
a task name based on the user-provided prompt instead of our random name
generator.
blinkagent[bot]