Three fixes from PR #2284 review feedback:
## 1. Fallback merge wording (7 SKILL.md files)
Every SKILL.md told the LLM to merge the three customization files
"in priority order (later wins)" when the resolver fails. That reads
as shallow last-write-wins — but the resolver does structural merge
(scalars override, tables deep-merge, code/id-keyed arrays merge by
key, other arrays append). Following the old wording manually would
have silently stripped base `principles`, `persistent_facts`, and
`menu` items whenever a team override was present.
Expanded the fallback sentence to restate the four structural rules
explicitly, matching the resolver's behavior.
Applied to all 6 agents + bmad-product-brief workflow.
## 2. Python 3.11 / OS shipping claim (customize-bmad.md)
The docs claimed "macOS 13+, Ubuntu 22.04+, Debian 12+, Fedora 37+
all ship 3.11 or newer." Inaccurate — Ubuntu 22.04 defaults `python3`
to 3.10.6 (3.11 is a separate package), and macOS doesn't really
ship Python by default anymore.
Replaced with honest guidance: check `python3 --version` and note
that macOS without Homebrew and Ubuntu 22.04 default to 3.10 or
earlier.
## 3. Autonomous mode greeting gate (bmad-product-brief)
Product-brief's activation-mode detection documents autonomous mode
as "produce complete brief without interaction" — but Step 5 greeted
unconditionally, adding conversational output before the headless
artifact. Gated the greeting on `{mode}` != `autonomous`.
## Dismissed (replied on thread)
- `.gitignore` migration from *.user.yaml to *.user.toml: YAML
installer code was in reverted #2282, never released. No users
affected. Same rationale as Augment's earlier thread.
Validated: 254 files, 146 refs, 0 broken. test:refs 7/7,
test:install 242/242.
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