src/AGENTS.md: allow agent tclint CLI runs at explicit user request (pipx-installed tclint, on-demand lint only)

Assisted-by: harness=opencode; primary-model=openrouter/moonshotai/kimi-k3; api-location=openrouter.ai

src/AGENTS.md

@@ -17,7 +17,7 @@ The source tree root contains all editable source code, build scripts, test suit
 - Shell launcher entry points include `tclsh src/make.tcl shell`, built launchers under the project `bin/` directory, scripts sourced from `src/scriptapps/`, and executable entry scripts under `src/vfs/_config/`.
 - Tcl 8.6+ is required and Tcl 9.0 is supported; gate 9.0-specific behavior behind version checks or existing `punk::lib::compat` helpers.
 - Primary target is Windows (`win32-x86_64`); Linux, macOS, and FreeBSD are secondary targets.
-- Tcl linting is available only through the VS Code Tcl lint plugin configured by `tclint.toml`; do not try to run `tclint` or `tcllint` as shell commands.
+- Tcl linting is available only through the VS Code Tcl lint plugin configured by `tclint.toml`; do not try to run `tclint` or `tcllint` as shell commands, except at explicit user request.
 - Lint coverage is `.tcl` and `.tm`; extend config if new Tcl-related extensions appear.
 - Shared Tcl source formatting defaults are a 400-character line cap, no more than 10 consecutive blank lines, 4-space indentation, and no tabs except inside string literals.
 - Source priority for editable modules: `src/modules/` > `src/modules_tcl<major>/` > bootsupport > VFS > built > installed.