apm's bundle exporter drops symlinks entirely, so a symlink under .apm/ never
reaches the mirror -- and no gate could see it, because every existing check
diffs the live mirror against a bundle-derived copy and both sides lack the
file. It is an absence with nothing left to mismatch against, the only class of
.apm/ content that vanishes without a trace. check_apm_symlinks reads the .apm/
source tree, where the loss is visible, and fails both modes. Reported rather
than resolved: dereferencing would make a real sync emit content the bundle does
not contain, which is the reimplementation ADR-0017 rejects.
--check --all could also pass having verified fewer plugins than the marketplace
lists: a plugin whose .apm/ had gone was SKIPped rather than counted, and the
earlier floor only caught zero. The count is now checked against the marketplace's
own local-package list. There is no exempt state -- ADR-0015 makes .apm/ the sole
authoring source for every local plugin, so a listed plugin without one is drift.
On the Copilot hooks gap, the decision is to document, not implement. Copilot
declares no hooks path and apm emits none, which looks like the mcpServers case
-- but that exception holds because .mcp.json is one host-agnostic format both
ecosystems read, so a pointer to it is true whatever it contains. Hooks have no
shared format: Claude expects nested matcher groups under PascalCase events,
Copilot requires version: 1, camelCase, and a bash/powershell split. apm merges
.apm/hooks/*.json into exactly one file, at Claude's convention path. A pointer
would assert a Claude-shaped file is Copilot-shaped -- an incomplete manifest
traded for a wrong one -- and it is not inert today either, since {"hooks": {}}
lacks Copilot's mandatory version key. A test pins the decision, so restoring the
pointer fails until someone confronts the schema mismatch.
Tests: 77 -> 92 assertions.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X7GvKuJfy2WrdBmUttV4DT
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