[BUG] /ultraplan fails with "seed bundle import: file not found: firestore: not found"

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Running /ultraplan <prompt> consistently fails at session-creation time
with a Firestore "not found" error during seed bundle import. The local
client (Claude Code 2.1.144) reports the failure immediately; no remote
session URL is produced.

Two consecutive attempts produced an identical error. The repo is a
private monorepo (~25 services, Java/Spring Boot + Terraform); the prompt
referenced a local file in ~/Downloads/.

claude update reports 2.1.144 is the latest version, so I cannot test
on a newer client.

/ultrareview was not tested in this session, but other local CLI
features (chat, tools, plugins) work normally — the failure appears
isolated to the cloud session bootstrap path.

What Should Happen?

Comando: /ultraplan con prompt + ref archivo md

• Error literal: seed bundle import: failed to import files: file not found: firestore: not found
• Repo path local, sin info sensible
• 2 intentos consecutivos, ambos fallan idéntico

Error Messages/Logs

Steps to Reproduce

Steps to reproduce

1. cd into a non-trivial git repo (monorepo, ~few hundred MB working tree).
2. Run claude to start an interactive session.
3. Run /ultraplan <a multi-paragraph prompt that references a local file>.
4. Observe immediate failure (no remote URL emitted).

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Expected behavior
Remote Claude Code on the web session is created; a session URL is
printed and the plan begins generating remotely.

---
Actual behavior / Error output (literal, en bloque code):
ultraplan: session creation failed — seed bundle: seed bundle import: failed to import files: error executing request: file not found:
{"code":"not_found","message":"file to import not found: error retrieving file to import: firestore: not found"}

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.144 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

Environment

• Claude Code version: 2.1.144
• OS: macOS 26.3 (build 25D125)
• Arch: arm64 (Apple Silicon)
• Shell: zsh (/bin/zsh)
• Node: v24.11.1
• Auth: (poné el que uses: "Claude.ai subscription" o "Anthropic API key" o "Bedrock/Vertex")
• Plugins active: superpowers, caveman, aws-dev-toolkit, developer-kit-java, fullstack-dev-skills, pr-review-toolkit (largo set, posiblemente relevante para tamaño

del seed bundle)
Frequency
100% reproducible in this repo (2/2 attempts). Other repos not tested.

---
Additional context

• Concurrent Claude Desktop usage was tested as a possible cause and ruled

out — the error wording ("not_found") does not match a quota/auth/rate
conflict.

• Local transcripts in ~/.claude/projects contain no prior successful

ultraplan session URLs (claude.ai/code/*), so this is not a stale-session
collision.

• Workaround in use: running the plan locally with the CLI.
• Happy to provide debug logs (claude --debug + retry) if useful; will

redact any path/identifier the team flags as sensitive.