docs: add /tinybird skill for pipe and datasource deploys

[emlimlf]

Summary

• Adds a /tinybird skill documenting the edit-and-deploy cycle for Tinybird pipes/datasources (venv setup, workspace selection between lfx_insights_stg/lfx_insights, format, push, PR, prod rollout gated on explicit confirmation)
• Registers the skill in .claude/rules/skill-guidance.md with trigger phrases

Context

This was originally opened as linuxfoundation/insights#2087, but the Tinybird resources it documents (.pipe/.datasource, format.sh, the README) all live in this repo under services/libs/tinybird/, not in insights. Moving the skill here removes the need for it to locate a sibling checkout or guard against editing a submodule — it now just operates directly on this repo's own Tinybird resources and PR conventions.

Test plan

• Confirm the skill loads in a fresh Claude Code session in this repo
• Confirm it prompts for confirmation before any tb push to the lfx_insights (prod) workspace

Note: no JIRA (CM) key included in this title yet — pr-title-jira-key-lint will fail until one is added.

[cursor]

PR Summary

Low Risk
Documentation-only changes to Claude skill guidance; no application or Tinybird runtime code is modified.

Overview
Introduces a /tinybird Claude Code skill for editing and deploying Tinybird pipes and datasources under services/libs/tinybird/, and wires it into skill routing so assistants suggest it for tb push/tb pull, pipe/datasource changes, and staging vs prod workspace work.

The new skill spells out an end-to-end flow (venv, auth handoff, workspace selection for lfx_insights_stg / lfx_insights, tb pull, format.sh, staging push, PR conventions, post-merge prod push) with guardrails: no prod tb push without explicit confirmation, no datasource deletes or tb push --populate, and safe handling of .tinyb credentials via jq only. It explicitly defers backfills, Docker testing, and architecture deep-dives to the existing Tinybird README.

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[github-actions]

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[Copilot]

Pull request overview

Adds a /tinybird skill for safely editing and deploying Tinybird resources.

Changes:

• Documents setup, staging, PR, and production workflows.
• Registers Tinybird-related trigger phrases.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
.claude/skills/tinybird/SKILL.md	Defines the deployment workflow and safeguards.
.claude/rules/skill-guidance.md	Registers /tinybird routing triggers.

Suppressed comments (1)

.claude/skills/tinybird/SKILL.md:126

• The production path omits the explicit current-workspace verification required by lines 70–71 and demonstrated for staging. Add the check here so the workspace shown during confirmation is provably lfx_insights before the production push.

tb workspace use lfx_insights

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