Resync the Skills Tree and Markdownlint Config With the Hub - #578

## Summary

Resyncs the carried instruction set with hub `ptr727/ProjectTemplate` at
`c175d557`, step 1 of the hub's `RESYNC.md`.

- `AGENTS.md`, `GOVERNANCE.md`: every verbatim section re-vendored with
`scripts/carry.py apply-sections`, inserting the two newly declared
sections, "Design Before Code" and "Trust Boundaries and Hardening
Effort". The repository's own preamble, "Devcontainer", and "Repository
Layout" text is untouched.
- `WORKFLOW.md`: the hub canonical. The old copy matched a past hub
revision exactly and carried nothing of its own.
- `CODESTYLE.md`: the hub canonical, keeping this repository's
"Utilities .NET Conventions" section. The hub's pointers to its hub-only
"Running the Linters Locally" section are re-pointed at `OPERATIONS.md`:
linter invocations and shell checks at "Local Verification", the commit
hook's scope at "Tool Usage", and its install step at "Runbooks".
- `OPERATIONS.md`: the documented prose gate now runs through `uv run
--no-project --script`. It declares PEP 723 dependencies, so the bare
`python3` form failed on a host without them.

`CLAUDE.md` already matched the hub. Findings closed, from `audit run
2026-11-09T16:22:11Z | hub c175d557`: every `verbatim: AGENTS.md` and
`verbatim: GOVERNANCE.md` finding, and the `intent` advisories on
`AGENTS.md`, `GOVERNANCE.md`, `CODESTYLE.md`, and `WORKFLOW.md`.

## Merge order

Merge this first. #578, #579, and #580 each depend on text it carries.

## Verification

- markdownlint, editorconfig-checker, and the pinned prose gate pass on
the changed files. The documented `OPERATIONS.md` prose gate command
runs clean against this branch.
- Local strict review ran three passes. The first two found the
commit-gate pointer and the bare `python3` command, both fixed here. The
final pass over the full diff found nothing.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

## Summary

Promotes the hub resync to `main`. It carries four feature pull
requests, all merged into `develop` and resynced against hub
`ptr727/ProjectTemplate` at `c175d557`:

- #581 resyncs the instruction set: `AGENTS.md` and `GOVERNANCE.md`
verbatim sections, `WORKFLOW.md`, and `CODESTYLE.md` with the
repository's own .NET conventions kept. It also fixes the
`OPERATIONS.md` prose gate command, which now runs through `uv`.
- #578 re-vendors `.github/skills` and `.markdownlint-cli2.jsonc`. It
adds `decision-triage` and prunes `unattended-handoff`.
- #579 brings the publisher concurrency group onto D7.1 and gives the
required aggregator its ruleset-bound name only on a `pull_request` run
(D1.5).
- #580 reconciles the intent-fidelity files: `AUDIT.md`,
`.github/copilot-instructions.md`, `.editorconfig`, `.gitattributes`,
and `cspell.json`.

No shipped input changes, so this promotion publishes no package. Two
independent reasons:

- `git diff --name-only origin/main origin/develop` names none of the
publisher's push paths (`Utilities/**`, `version.json`,
`Directory.Build.props`, `Directory.Packages.props`).
`Directory.Packages.props` appears in this pull request's three-dot file
list only because `develop` (#576) and `main` (#577) took the same
Dependabot bump independently, so the trees already match. A push event
evaluates its path filter on the two-dot diff between the pushed
`before` and `after` commits.
- The pinned `publish-plan-task.yml` publishes a push to `main` only
when the actor is `ptr727-codegen[bot]` or `dependabot[bot]`. A
maintainer merging this promotion publishes nothing on any path.

## Audit

`audit run 2026-11-09T16:56:11Z | hub c175d557 | branch override
develop` reports 0 defect findings on `develop`, against the many
verbatim, tree, interface, and concurrency findings on `main` before the
resync. What remains is advisory:

- `.editorconfig-checker.json` and `version.json` are date-only intent
advisories. Their differences from the hub are this repository's own:
the `.artifacts/` exclusion and the 4.1 version floor.
- `.coderabbit.yaml`, `.pr_agent.toml`, and `.github/agent-policy.json`
are flagged hub-only. They are rendered reviewer configs every
repository carries, which ptr727/ProjectTemplate#3914 tracks declaring.
- A branch note says both workflow files changed on `main` (Dependabot
action bumps) and on `develop` since the merge base. A test merge of
`develop` into `main` auto-merges cleanly, and its tree equals
`develop`'s tree.

## Review coverage

#579 and #580 met every Merge Gate item. #581 and #578 merged into
`develop` with the maintainer's explicit authorization over item 2.
Their Lite Copilot rounds left files out of their file tables, which
sets the attested local pass aside (ptr727/ProjectTemplate#3955). Each
carried an attested local strict-review pass over every changed file.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Updated
[dotnet-outdated-tool](https://github.com/dotnet-outdated/dotnet-outdated)
from 4.8.1 to 4.9.0.

<details>
<summary>Release notes</summary>

_Sourced from [dotnet-outdated-tool's
releases](https://github.com/dotnet-outdated/dotnet-outdated/releases)._

## 4.9.0

## What's Changed
* Adopt MCP 2026-07-28 spec with legacy version negotiation by @​slang25
in dotnet-outdated/dotnet-outdated#772
* Fix concurrent cache corruption during recursive file-based app
upgrades by @​DamianEdwards in
dotnet-outdated/dotnet-outdated#788
* Fix: Parameter --maximum-version ignores exact version references by
@​chefarbeiter in
dotnet-outdated/dotnet-outdated#671
* Show a friendly message instead of crashing when a solution has no
projects by @​DanielC000 in
dotnet-outdated/dotnet-outdated#771
* Surface package-upgrade stdout so failures are diagnosable by
@​timabell in
dotnet-outdated/dotnet-outdated#790
* Fix multiline central package version updates by @​onuracar-dev in
dotnet-outdated/dotnet-outdated#783
* Support versioned MSBuild project SDKs in project files by @​thomhurst
in dotnet-outdated/dotnet-outdated#793
* Preserve whitespace in Directory.Packages.props during upgrades by
@​symbiogenesis in
dotnet-outdated/dotnet-outdated#803
* Treat package references injected by custom SDKs as auto-referenced by
@​thomhurst in
dotnet-outdated/dotnet-outdated#795
* Preserve version ranges when upgrading packages by @​GREsau in
dotnet-outdated/dotnet-outdated#702
* Preserve MSBuild version variables across project and props files by
@​symbiogenesis in
dotnet-outdated/dotnet-outdated#805
* Replace McMaster command-line parsing with System.CommandLine by
@​slang25 in dotnet-outdated/dotnet-outdated#808
* Bump version to 4.9.0 by @​slang25 in
dotnet-outdated/dotnet-outdated#806

## New Contributors
* @​chefarbeiter made their first contribution in
dotnet-outdated/dotnet-outdated#671
* @​DanielC000 made their first contribution in
dotnet-outdated/dotnet-outdated#771
* @​timabell made their first contribution in
dotnet-outdated/dotnet-outdated#790
* @​onuracar-dev made their first contribution in
dotnet-outdated/dotnet-outdated#783
* @​thomhurst made their first contribution in
dotnet-outdated/dotnet-outdated#793
* @​GREsau made their first contribution in
dotnet-outdated/dotnet-outdated#702

**Full Changelog**:
dotnet-outdated/dotnet-outdated@v4.8.1...v4.9.0


Commits viewable in [compare
view](dotnet-outdated/dotnet-outdated@v4.8.1...v4.9.0).
</details>

Updated [ptr727.Utilities](https://github.com/ptr727/Utilities) from
4.1.105 to 4.1.109.

<details>
<summary>Release notes</summary>

_Sourced from [ptr727.Utilities's
releases](https://github.com/ptr727/Utilities/releases)._

## 4.1.109

## What's Changed
* Bump the actions-deps group with 4 updates by @​dependabot[bot] in
ptr727/Utilities#574
* Bump the nuget-deps group with 2 updates by @​dependabot[bot] in
ptr727/Utilities#576
* Resync the Instruction Set With the Hub by @​ptr727 in
ptr727/Utilities#581
* Resync the Skills Tree and Markdownlint Config With the Hub by
@​ptr727 in ptr727/Utilities#578
* Bring the Publisher Concurrency and Aggregator Name to the Workflow
Contract by @​ptr727 in ptr727/Utilities#579
* Reconcile the Intent-Fidelity Carried Files With the Hub by @​ptr727
in ptr727/Utilities#580
* Promote the Hub Resync to Main by @​ptr727 in
ptr727/Utilities#582


**Full Changelog**:
ptr727/Utilities@4.1.108...4.1.109

## 4.1.108

## What's Changed
* Bump the actions-deps group with 4 updates by @​dependabot[bot] in
ptr727/Utilities#575
* Bump the nuget-deps group with 2 updates by @​dependabot[bot] in
ptr727/Utilities#577


**Full Changelog**:
ptr727/Utilities@4.1.105...4.1.108

Commits viewable in [compare
view](ptr727/Utilities@4.1.105...4.1.109).
</details>

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