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MCP argument completion from choice lists

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
35/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
csharp

Research direction

Read the MCP completion/complete behavior and the choice lists work in issue #59; this issue does not name implementation files or tests. First confirm that choice lists have shipped and find documentation or a changelog showing a named client requests prompt argument completions. Done when a client is confirmed and a recording of its answers is added to the MCP contract fixtures.

Written by the indexing model from the issue text.

Description

enhancement later

MCP lets a server suggest argument values (completion/complete). Prompuff could suggest values for a favorite's {{variables}} when it runs as a slash command.

Why it waits

  • It needs something to suggest. Remembered values are never exported, and handing them to an AI tool would export them, so they stay out of completions. Choice lists (#59) are the source, and they don't exist yet.
  • No named client asks for completions yet: Claude Code, Claude Desktop, Codex or Copilot CLI. Codex and Copilot CLI don't show MCP prompts at all.

When it's ready

  • Choice lists have shipped.
  • One of the named clients requests completions for prompt arguments. Link its docs or changelog here.

Then it gets a milestone, and a recording of its answers joins the MCP contract fixtures.

Dominant language
C#
Stars
0
Forks
1
Avg merge
1h 21m
Merged PRs (30d)
22

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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