feat(bmad-help): llms.txt support for general questions

[bmadcode]

Summary

• Adds _meta rows to core and BMM module-help.csv files registering https://docs.bmad-method.org/llms.txt
• Updates bmad-help SKILL.md with instructions to fetch llms.txt when user asks general module questions that don't map to a specific skill
• Updates installer to pass _meta rows through cleanly during CSV merge

Test plan

• All 196 installer tests pass
• Linting and formatting pass
• llms.txt URL returns HTTP 200
• Run bmad-help with a general question to verify llms.txt fetch behavior

[augmentcode]

🤖 Augment PR Summary

Summary: Adds llms.txt-based fallback answering for general questions in bmad-help by registering docs URLs via _meta rows.
Changes: Updates installer CSV merge to preserve _meta rows so the merged help catalog can carry per-module documentation links.

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[augmentcode]

Review completed. 3 suggestions posted.

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[augmentcode]

The note that _meta appears in the skill column “(or phase column in the merged CSV)” seems to conflict with the earlier “CSV Interpretation” section that defines the catalog schema; this ambiguity could cause the _meta detection to key off the wrong column name/order.

Severity: medium

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[augmentcode]

Because this instructs the assistant to fetch and use external content, consider explicitly treating fetched llms.txt content as untrusted reference material (i.e., do not follow any embedded instructions) to reduce prompt-injection risk.

Severity: medium

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[augmentcode]

This _meta pass-through only executes inside the columns.length >= 12 guard; if a module provides a minimal _meta row (e.g., just module + _meta + output-location), it will be silently skipped and the llms.txt fallback won’t work for that module.

Severity: medium

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 1e293769-89d2-46a0-85a9-2ca1ea5373b4

📥 Commits

Reviewing files that changed from the base of the PR and between b744408 and e226ee2.

⛔ Files ignored due to path filters (2)

• src/bmm-skills/module-help.csv is excluded by !**/*.csv
• src/core-skills/module-help.csv is excluded by !**/*.csv

📒 Files selected for processing (2)

• src/core-skills/bmad-help/SKILL.md
• tools/installer/core/installer.js

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📝 Walkthrough

Walkthrough

This pull request introduces support for general questions via module documentation. It adds a _meta row detection mechanism to the CSV merge logic in the installer and specifies new fallback behavior in the help skill to retrieve and ground answers using module llms.txt content when user questions don't match catalog skills.

Changes

Cohort / File(s)	Summary
Meta Row Support for Module Help src/core-skills/bmad-help/SKILL.md	Adds "General Questions via llms.txt" section describing detection of _meta rows in the catalog, extraction of module documentation URLs from output-location, WebFetch retrieval of module llms.txt content to ground answers, and fallback to existing knowledge when no _meta row exists.
CSV Merge Meta Row Handling tools/installer/core/installer.js	Modifies mergeModuleHelpCatalogs() to detect rows where phase === '_meta', compute finalModule based on module and source conditions, construct meta rows with forced required='false' and CSV-escaped fields, and skip standard row transformation and agent-info lookup for these rows.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding llms.txt support for handling general questions in bmad-help.
Description check	✅ Passed	The description clearly relates to the changeset by outlining the key changes: adding _meta rows, updating SKILL.md instructions, and updating the installer logic.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch bmad-help-evolved

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