docs: explain Context7 routing choices

TODO.md

@@ -29,7 +29,7 @@
 
 - [x] Make `jq` conditional in capability checks. Both checks fail when it is absent, although the runtime doctor only warns and the requirement is limited to Claude's Bash status line. (`scripts/commands/check-capabilities.ps1:12`, `scripts/commands/check-capabilities.sh:19`, `README.md:110`)
 - [x] Review the global MCPorter-only rule's failure behavior. It prohibits all direct MCP use and requires stopping when MCPorter is unavailable, even for a user-authorized native connection; decide whether this restriction should be scoped to managed servers. (`shared/global-instructions.md:7`)
-- [ ] Align Context7 selection with the MCPorter-only rule. If Context7 is selected without MCPorter, reconciliation installs its native client plugin even though the generated instructions forbid using native MCP connections. Either require MCPorter for this entry or change the rule and menu together. (`scripts/lib/managed-extensions.py:465`, `adapters/plugins.tsv:5`, `shared/global-instructions.md:7`)
+- [x] Align Context7 selection with the MCPorter-only rule. If Context7 is selected without MCPorter, reconciliation installs its native client plugin even though the generated instructions forbid using native MCP connections. Either require MCPorter for this entry or change the rule and menu together. (`scripts/lib/managed-extensions.py:465`, `adapters/plugins.tsv:5`, `shared/global-instructions.md:7`)
 - [x] Clarify the decision rule for minor reversible UI choices. Its broad instruction to ask when UI/UX behavior is open to interpretation can block routine choices that `general.md` says to make independently unless materially ambiguous. (`shared/rules/decision-rule.md:6`, `shared/rules/general.md:5`)
 - [x] Review the permanent-prompt budget thresholds. Both baselines and absolute limits are 6000 bytes, so the advertised 15% relative allowance can never be used; even a small increase past 6000 fails. Decide whether the hard cap or the relative allowance is intended. (`adapters/prompt-budget-baseline.json:1`, `adapters/prompt-budget-baseline.tsv:2`, `scripts/commands/prompt-budget.ps1:26`, `scripts/commands/prompt-budget.sh:20`)
 - [x] Correct QMD documentation. It says Codex registers `qmd mcp` and deselection leaves the global executable, while the manager does not register that MCP server and removes owned QMD npm packages. (`docs/plugins.md:17`, `scripts/lib/managed-extensions.py:378`)

docs/plugins.md

@@ -4,6 +4,8 @@ The user-level plugin manifest is `adapters/plugins.tsv`. It maps each logical e
 
 The current baseline includes Ponytail, i-have-adhd, Superpowers, Context7, Caveman, QMD, Humanizer, Impeccable, and Anthropic Frontend Design. Both scripts operate at user scope and show a plugin selector unless running a dry run. Selections are collected before configuration changes. Both rebuild generated packages first.
 
+Selecting Context7 with MCPorter registers the server in MCPorter. Selecting Context7 without MCPorter installs its native client plugin; that explicit selection permits the native MCP route under the global instructions.
+
 `install.ps1`/`install.sh` starts every plugin checked by default; unchecking one skips it. It refuses to run against an already-installed destination (`Already installed, use the update script.`).
 
 `update.ps1`/`update.sh` lets you revise the saved extension selection. Checking an extension installs it if missing or updates it if owned; existing foreign installations are preserved. Deselection removes only extensions that this setup installed and recorded as owned. Pre-existing or manually installed plugins and skills are retained. Extensions removed from the manifest are also removed when recorded as owned; unrelated installations are retained. Update refuses to run if any selected destination lacks an installation manifest (`Not installed, use the install script.`).