docs(adr): env transport for session and parked-window panes (#730, #731) - #850
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…dow panes Add ADR 0001 for bmad-code-org#730 and bmad-code-org#731: how the state root reaches a pane child when inheritance cannot carry it (PSMUX_BARE_ENV clears the env; a stale multiplexer server substitutes its own BMAD_LOOP_STATE_DIR). Accepted, in three stages: - Stage 1: a tmux-only inherited_env query plus a launcher warning when a pane would resolve a different state root. psmux stays Unknown, because its show-environment cannot see inherited values. - Stage 2: carry the state root to parked engine windows in argv (a hidden --state-root option), with no seam change, on every backend. - Stage 3: a versioned verb pair, specified but not scheduled. Also starts docs/adr/ with an index, linked from docs/README.md. Known gap: the round-3 review findings (the passwd fallback when HOME is absent, and absent vs empty HOME) were patched and checked against runs.state_root by hand, not re-reviewed. Refs bmad-code-org#730 bmad-code-org#731
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WalkthroughThe pull request adds an accepted ADR for multiplexer environment transport. It records inheritance findings, transport decisions, proposed stages, compatibility constraints, and implementation boundaries. The project README links to the ADR index, which lists ADR 0001 as Accepted. ChangesMultiplexer Environment Transport ADR
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Other Suggested reviewers: Merge Risk: 🔵 Low · up to The ambiguity affects a planned test, not current runtime behavior. Clarify that the refusal path is tested on an actual pre-7.3 runtime before Stage 2 is implemented. Architecture SummaryArchitecture risk: 🔵 Low · up to The change affects 1 system. Changed systems: Architecture concerns Review detailsSystems and components
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Review comments at @docs/adr/0001-mux-env-transport.md:
- Around line 279-310: Revise the Stage 2 section in the ADR to describe the
state-root argv transport as specified but not shipped, rather than as an
implemented change. Update the introductory summary and Stage 2 heading and
label, and change the contract wording for `--state-root` to clarify it is not
available at this head; keep the implementation and test plans framed as planned
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No stage of ADR 0001 is implemented yet. Say so in the summary and above the staged plan, label Stages 1 and 2 as planned, and word the approver's answer on --state-root as the contract Stage 2 will introduce.
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Stage 2 carries only the state root, so a coding-CLI pane in bare mode can still miss variables its env dict does not name. Only Stage 1's stale-root warning narrows to window-0 shells; the bare-env warning stays and drops just the parked-window clause.
A valid state root may contain spaces or shell metacharacters; set-environment takes a single value. The suggested commands must render the root with shlex.quote, and Stage 1's tests must assert it.
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Thanks for writing this up. The design holds, and Option D in particular is a good find: it fixes the parked-engine case on every backend without changing a released signature, so none of #728's three failure modes can come back.
I checked the ADR's code claims against main @ 68645cbd, and most of them hold. The inline threads cover the ones that don't, plus a few gaps an implementer would hit. Several of them reach into #854 and #851, so I'd rather you resolve them here, where you can keep the stage PRs consistent, than have me patch the ADR.
Before merge
- #731 would close on merge. The PR is linked to #731 in the Development sidebar (
closingIssuesReferenceslists it), but §8 B says #731 closes after Stage 2. Please unlink it; the body's "Refs" is fine. - The Stage 1 tmux remedy (L246), the Stage 2 CLI spec (L288) and the Stage 2 E2E placement (L313).
Cross-PR
- #854 ships the L246 remedy text in
_warn_if_stale_state_rootand in its newdocs/multiplexer-backends.mdsubsection, so it needs the same fix. It already solves the warn sink and the empty-override rule in code (L244, L232). The ADR should describe those mechanisms rather than leave them to the implementation. - #851 interacts with Option D (L174). Under
honor_ambient_psmux_data_dir, the registry root is a second fact that a bare-env parked engine loses. That needs a decision on how to handle it and which PR carries the fix.
Open design questions for you: how to handle the #851 interaction (L174), and what Stage 2 does with the stale-root warning (L291). I've laid out the options I see in both threads; the choice is yours.
Approval record
§8 names no approver, and 22d21963 and 14a1a3e3 changed Stages 1 and 2 after the 2026-10-02 acceptance (L364).
Confirmed correct (no change needed)
- The released seam signatures and their abstractness.
- The non-abstract query pattern:
version,window_pane_pids, and theon_faultshape oflist_sessions_reporting. inherited_envonTmuxMultiplexer, notBaseTmuxBackend, since psmux subclasses the base.- The state-root cascade as described, including
HOME=""→/→ rejected (runs.py:435-545). - No duplicate helpers:
- no existing
show-environmentuse or env-query helper; - no
Unsetsentinel; - one copy of the cascade.
- no existing
cli_argvhas exactly two callers (tui/launch.py:923,:1047).- Coding-CLI and probe windows are pinned (
generic.py:900,probe.py:629,runs.pin_state_root). - The tmux 3.2 floor, and the psmux bare-env allowlist, re-read at
v3.3.8. - Coverage:
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| | Pane | Created by | How it gets the state root | Exposed? | | ||
| | --------------------------------------------------------------- | --------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------- | | ||
| | Coding-CLI window, probe window, attached resolve window | `new_window(..., env, ...)` | Explicit `env` dict, forced through `runs.pin_state_root`. On psmux it travels as an in-source `$env:` prelude inside `-EncodedCommand` (`PsmuxMultiplexer._window_launch`). On tmux it travels as `-e`. | No, on every transport | |
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The attached resolve window isn't a new_window. It's a foreground subprocess.run(argv, env={**os.environ, …}) inside the parked resolve-<id> window (src/bmad_loop/resolve.py:571-572).
Its pin comes from the parked process's own root, so it's exposed through row 2 rather than immune, and Stage 2 fixes it transitively. Suggest moving it out of this row and adding a note under the table.
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Fixed in 74a78473. The resolve session is out of row 1, and a note under the table says what it is: a foreground subprocess.run inside the parked resolve-<id> window (resolve.run_session). interactive_env pins it through runs.pin_state_root, but from that process's own root, so it is exposed exactly as row 2 is, and Stage 2 fixes it transitively.
| - Without `seam_version = 2`, a same-named helper is never called. | ||
| - A helper named `new_session_with_env` on a subclass that inherits its parent's `seam_version = 2` is not called either, because the class defining it did not declare the version itself. | ||
| - **No delegation layer.** The bundled backends implement each pair over a private `_spawn_session(…, env: Mapping[str, str] | None)` / `_spawn_parked(…)`. Neither public verb calls the other. | ||
| - **Fail loud at the boundary.** `register_multiplexer` takes a factory, not a class, so registration cannot inspect the backend without constructing it, and must not. The check therefore runs where the backend is first built (`multiplexer._select`, which `get_multiplexer` and `detect_multiplexers` reach). An instance whose class declares `seam_version >= 2` but still inherits a `NotImplementedError` default is **malformed**. Registration stays lazy. |
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Two gaps for whenever Stage 3 is scheduled:
detect_multiplexersconstructs every backend again in its own row loop (multiplexer.py:946-1000), separately from_select. The malformed check has to run there too for the detection row to report it. The reason can rideMuxBackendInfo.probe_error.- L150:
_source_prefix()takes no arguments and is an overridable dialect hook (tmux_base.py:419,psmux_backend.py:395). The parked$env:prelude can't go in it unchanged; it needs a new parameter or a separate fragment.
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Fixed in 74a78473 (Stage 3 stays unscheduled, but its spec is now right). The construction check runs in both places that build a backend: _select, and detect_multiplexers' own row loop, which calls every factory again and reports the reason through MuxBackendInfo.probe_error.
The parked prelude is now a separate fragment ahead of _source_prefix(), not a new parameter. The hook is overridable (tmux_base.py, psmux_backend.py), so widening its signature would repeat post-mortem item 1 one level down.
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| - **Pros:** fixes the damaging case (parked engine windows) for #730 **and** #731, on **every** backend including out-of-tree ones. Argv is opaque to the seam and survives both an env clear and a stale server. Zero seam change, so none of the three post-mortem modes can occur. | ||
| - **Cons:** | ||
| - It carries only the state root. Since #537 that is the only fact the engine cannot re-derive: the psmux registry is derived from it, and coding-CLI windows are pinned from the engine's own env. |
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This holds while the psmux registry is derived from the state root. With #851's [mux] honor_ambient_psmux_data_dir on, the registry is the operator's PSMUX_DATA_DIR, a second fact the engine can't re-derive.
Bare mode loses it:
apply_bare_env_if_setre-adds only the 14 system names.set_tmux_envaddsTMUX,TMUX_PANEandPSMUX_SESSION, but notPSMUX_DATA_DIR(src/pane.rsl.889-961 atv3.3.8).
A bare-env parked engine would therefore fall back to the derived registry and mint its coding-CLI windows where the TUI isn't looking. #851's _registry_drift predicts the child's registry "from the root it inherits", which is exactly the inheritance #730 breaks.
This is your call; the options I can see are:
- Extend Stage 2 to also carry the settled registry root in argv. The launcher composes that argv, so it isn't a policy-sourced path and wouldn't conflict with feat(runs,cli): opt in to an operator's own PSMUX_DATA_DIR (#729) #851's "whether, never where" rule.
- Record it as a known gap in Option D's cons and §7, with a direction, and leave the fix for later.
- Treat it as feat(runs,cli): opt in to an operator's own PSMUX_DATA_DIR (#729) #851's concern and note that here.
Whichever you choose, the "only fact" claim here and the §7 #729 bullet (L362) need updating, and #850 and #851 need to agree on which PR carries the resolution.
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Agreed, and measured on psmux 3.3.8 with a pane that dumps its env to a file and sleeps. Under PSMUX_BARE_ENV=1, PSMUX_DATA_DIR, BMAD_LOOP_STATE_DIR, APPDATA and LOCALAPPDATA are all absent, while TMUX, TMUX_PANE and PSMUX_SESSION are present. Without it, all of them are there.
We took your first option, in 74a78473. When the transport namespaces registries, Stage 2 also hands the parked engine a hidden top-level --registry-root=<root in force>. cli.main applies it to PSMUX_DATA_DIR beside --state-root, before _configure_mux, so #851's unchanged resolve_psmux_registry_root decides exactly as if the root had been inherited. The launcher composes it, so it isn't a policy-sourced path, and "whether, never where" holds. Out-of-tree backends answer has_registry_namespace() False and registry_root() None by default, so they are handed nothing.
Option D's cons and the §7 #729 bullet now say this. #851 states its inheritance assumption in _registry_drift and resolve_psmux_registry_root, and Stage 2 turns "inherits" into "is handed" when it lands. Until then, bare mode stays unsupported and warned, and the warning already says that parked shells derive their own state root and registry.
| **The comparison.** `_ensure_ctl_session` runs it after **both** arms, a freshly created control session as well as a reused one: a new session on a stale tmux server inherits the stale global env too (measured, §3.2 row "`new-session` from an `/s2` client"). It compares **what each side would resolve**, not raw values: | ||
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| - **The pane's root is resolved from every cascade input, not just the override.** `runs.state_root` falls back to `XDG_STATE_HOME`, then `HOME`, when `BMAD_LOOP_STATE_DIR` is unset (on win32: `LOCALAPPDATA`, then `USERPROFILE`). A stale server can carry a different `XDG_STATE_HOME` while neither side sets the override. Equally, an override can name exactly the root the pane's default would reach. | ||
| - So Stage 1 factors the cascade out of `runs.state_root` into a pure `runs.resolve_state_root(env: Mapping[str, str], passwd_home: str | None) -> Path`. |
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Two things the resolver needs to keep from today's behavior:
BMAD_LOOP_STATE_DIR=""reads as unset (envvars.state_dir,envvars.py:88-111). UnlikeHOME, empty and absent are the same input here. Worth stating next to the absent-vs-empty paragraph (L206-211), so the pane-side mapping can't turn an empty override into a false mismatch, and adding a test bullet.- The resolver reads
sys.platform.- The win32 arm is testable by monkeypatching
runs.sys.platform(pattern attests/test_runs.py:2097). - The passwd lookup should stay lazy and behind
sys.platform != "win32"; pyright needs that too.
- The win32 arm is testable by monkeypatching
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Fixed in 74a78473. Next to the absent-vs-empty paragraph, the ADR now says only HOME distinguishes the two. BMAD_LOOP_STATE_DIR="" reads as unset through envvars.state_dir, which the resolver calls with the pane's mapping, and XDG_STATE_HOME, LOCALAPPDATA and USERPROFILE read empty as unset through _state_base. So a set-empty override can't produce a false mismatch. The comparison now names the runs.sys.platform monkeypatch for the win32 arm, and the passwd lookup stays lazy and behind sys.platform != "win32".
#854 already resolves through envvars.state_dir(env) and keeps that guard (runs.needs_passwd_home, runs.passwd_home). It gains the missing tests in 33f49939: empty-override cascade rows, and a launcher test that stays silent on a set-empty override, ablated by reading the override raw and testing it with is not None (a plain key-presence read is still filtered by the empty-value guard, so it alone would not turn the test red).
| - If **any** input comes back Unknown, the comparison is Unknown. Unknown never warns about a mismatch, but a query fault reaches the warn sink through `on_fault`. | ||
| - If the **launcher's own** root is underivable (`StateRootError`), Stage 1 skips the comparison and reports that, naming the error, through the same sink. The launch is not blocked here: the exception is caught inside the comparison and never escapes to the TUI callers. Refusing the launch is Stage 2's job. | ||
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| **The warning.** On a mismatch it warns once per process, through the TUI's warn sink rather than stderr. It names both roots and states the remedy: |
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There's no TUI warn sink for this to plug into today:
tui/launch.pytakes nowarnparameter anywhere (_ensure_ctl_session:862,start_detached:883).- A stderr print is swallowed while Textual runs, because Textual redirects stderr.
- The existing pattern is
warn=plus_notify_guard_notes(tui/app.py:1684,:1737).
Suggest:
- naming the mechanism: a process-level sink the TUI installs for the app's lifetime, with a test reset fixture like
_bare_env_unwarned(tests/test_psmux_backend.py:402); - adding
src/bmad_loop/tui/app.pyto Files.
A small wording point at L229: _ensure_ctl_session has no explicit reuse arm, so "after both arms" reads better as "after the has_session/new_session branch".
This is also the fourth hand-rolled warn-once global, after _BARE_ENV_WARNED, _PROBE_FAULTS_WARNED and _FORCED_UNUSABLE_WARNED. That's fine as is; a shared helper is optional.
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Fixed in 74a78473. "The warning" now names the mechanism #854 implements. tui.launch.warn_sink is a process-level callable that run_tui installs for the app's run (a toast via App.notify, which Textual documents as thread-safe) and resets after it. With no sink, the line goes to stderr. The once-per-process keys live in launch._WARNED, and an autouse fixture resets both, on the _bare_env_unwarned precedent. src/bmad_loop/tui/app.py and its test are listed. L229 now reads "after the has_session/new_session branch". We left the four warn-once globals as they are.
| - Add a hidden top-level `--state-root` option, applied in `cli.main` before `relay` dispatch and `_configure_mux`. | ||
| - It must be absolute. Otherwise `main` exits `USAGE` with one message, the same rule as `BMAD_LOOP_STATE_DIR`'s own validation. | ||
| - `tui.launch.start_detached` inserts it from `runs.state_root()`, and raises `LaunchError` on `StateRootError` (see Option D). The other `cli_argv` caller is a captured `subprocess.run` that inherits the launcher's own env directly, so it needs no flag. | ||
| - Stage 1's stale-root warning narrows to window-0 and other already-running shells, since the parked engine now receives the root explicitly. Per Stage 1, the wording says that a matching query cannot vouch for a shell that is already running. |
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Once Stage 2 lands, the parked engine no longer depends on inheritance. This warning then only guards window-0 shells, where bmad-loop runs nothing.
On a tmux server shared by two projects with different legitimate roots, it would fire for one of them on every TUI start, with a remedy (L246) that breaks the other.
It's worth deciding what Stage 2 does with it. The options I can see:
- Demote it to an informational note about the window-0 residual, without the
set-environment/kill-serverremedy. - Retire it, and move the window-0 caveat to
docs/multiplexer-backends.md. - Keep it as specified, and accept the noise on shared servers.
inherited_env is a released seam method by then whichever way this goes. Whatever Stage 2 does, it's worth a test that pins the new text.
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Decided in 74a78473: demote. With Stage 2, the comparison only describes shells: new ones in <ctl> resolve another root, and already-open ones can't be vouched for. The note says that, says that runs launched from the TUI are unaffected, and drops the set-environment/kill-server remedy, because on a shared tmux server no value is right for every project.
We kept the comparison rather than retiring it. §5 relies on it to keep the window-0 residual visible while Stage 3 stays unscheduled, and retiring it would leave inherited_env a released seam method with no caller. The cost is one informational toast per TUI start on a server shared by projects with different roots, and there it is accurate. A Stage 2 test pins the text and asserts that neither remedy command appears.
| - It must be absolute. Otherwise `main` exits `USAGE` with one message, the same rule as `BMAD_LOOP_STATE_DIR`'s own validation. | ||
| - `tui.launch.start_detached` inserts it from `runs.state_root()`, and raises `LaunchError` on `StateRootError` (see Option D). The other `cli_argv` caller is a captured `subprocess.run` that inherits the launcher's own env directly, so it needs no flag. | ||
| - Stage 1's stale-root warning narrows to window-0 and other already-running shells, since the parked engine now receives the root explicitly. Per Stage 1, the wording says that a matching query cannot vouch for a shell that is already running. | ||
| - The bare-env warning (`PsmuxMultiplexer._warn_if_bare_env`) is **not** narrowed. Stage 2 carries only the state root, so a coding-CLI pane in bare mode can still miss credentials or configuration its env dict does not name (Option D, Cons). Its text drops parked-window shells from the list of shells that lose `BMAD_LOOP_STATE_DIR`, and keeps the warning itself. |
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Agree with keeping it, but on TUI-launched runs it won't reach the people it's kept for:
- It's printed to stderr from
PsmuxMultiplexer._run(psmux_backend.py:230,:279-288), and Textual redirects stderr while the app runs. - The parked engine never warns either.
PSMUX_BARE_ENVisn't on psmux's allowlist, so the bare clear removes it from the engine's own env.
Suggest Stage 2 also routes it through the TUI warn sink when the TUI is the launcher.
Another residual worth listing in Option D's cons (L178) and the §8 B re-scope (L371): APPDATA is dropped, so install._shield_home_git_ignore silently stops shielding. "Parked windows supported" could read "parked windows land on the right state root; other bare-env losses remain psmux's documented trade".
Wording constraint: the bare-env tests match warning: PSMUX_BARE_ENV and does not support (tests/test_psmux_backend.py), so the narrowed text should keep both. The _warn_if_bare_env docstring names parked windows too.
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Agreed on the conclusion, with two refinements, in 74a78473.
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The warning does fire in a TUI process, but before Textual starts:
cli._configure_mux's backend probe (_select→available()→version()→_run) runs ahead ofcmd_tui. WithPSMUX_BARE_ENV=1,bmad-loop muxprints it exactly once through that same path, andtuitakes the same path first. So the line lands on the main screen, Textual's alternate screen hides it until exit, and the once-per-process latch is already spent. Stage 2 therefore hasrun_tuire-surface it throughlaunch.warn_sinkitself instead of waiting for a later firing. The parked-engine half is as you say, and measured:PSMUX_BARE_ENVis absent in a bare pane. -
The
APPDATAloss is real, and measured on psmux 3.3.8 (APPDATAandLOCALAPPDATAare absent in a bare pane). The cause is git, though. The git the parked engine runs doesn't seeAPPDATAeither, so Git for Windows ≥ 2.46 skips%APPDATA%\Git\ignore, and_shield_home_git_ignoremirrors that git. The operator's global excludes there silently stop applying. Option D's cons now say so.
The #730 re-scope wording becomes "parked windows land on the right state root (and registry); other bare-env losses remain psmux's documented trade". It is recorded as an amendment rather than an edit to answer B. The narrowed text keeps warning: PSMUX_BARE_ENV and does not support, and the docstring changes with it.
| - `tests/test_tui_launch.py`: | ||
| - the parked argv carries the resolved root | ||
| - an underivable root raises `LaunchError` and mints no window. Ablate the refusal, and confirm this test fails. | ||
| - `tests/test_stories_e2e.py` (Linux only, real tmux, zero tokens): a server cold-started under S1, then a parked launch under S2, must land the engine's control plane under S2. This is the #731 reproduction as a regression gate. |
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tests/test_stories_e2e.py can't host this:
- It drives only the CLI as subprocesses (
_run, :706) and never callstui.launch.start_detached. - It uses the developer's default tmux server. Nothing in
tests/orsrc/setsTMUX_TMPDIRor-L, so "cold-start a server under S1" would mean taking over the developer's real server.
Whether to keep an E2E gate here at all is your call. If you keep it, it needs its own module, e.g. tests/test_tui_launch_tmux_e2e.py:
- real tmux, Linux only, zero tokens;
- a private
TMUX_TMPDIRwithTMUXunset, since a client follows$TMUXto the operator's socket; - cold-start under S1, run
start_detachedunder S2, and assert the parked engine's control plane lands under S2; - an
_EXPECTED_E2E_DEF_COUNTSentry (tests/test_conftest.py:1673).
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Fixed in 74a78473. We kept the gate, in a new module, tests/test_tui_launch_tmux_e2e.py, set up as you list: Linux, real tmux, zero tokens, a private TMUX_TMPDIR, a cold start under S1, start_detached under S2, and the control plane asserted under S2. Two additions come from the guards in tests/test_conftest.py: the module must carry the real_mux_e2e group mark with a literal skipif reason containing "tmux", and it needs its _EXPECTED_E2E_DEF_COUNTS entry. The autouse _isolate_mux_registry fixture already removes TMUX for every test, so the module adds only the private TMUX_TMPDIR.
| - an underivable root raises `LaunchError` and mints no window. Ablate the refusal, and confirm this test fails. | ||
| - `tests/test_stories_e2e.py` (Linux only, real tmux, zero tokens): a server cold-started under S1, then a parked launch under S2, must land the engine's control plane under S2. This is the #731 reproduction as a regression gate. | ||
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| **Out-of-tree compatibility test (must exist):** `start_detached` against `StubMux`. The argv handed to `StubMux.new_parked_window` contains `--state-root <root>`, and the call uses the released five-parameter signature. |
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StubMux raises AssertionError on new_parked_window and set_window_option (tests/test_multiplexer.py:92, :104), and start_detached calls both. This needs a StubMux subclass that records those two calls with the released signatures.
The Stage 1 compat test at L282 is fine as written: StubMux implements has_session/new_session.
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Fixed in 74a78473: the Stage 2 compat test now uses a StubMux subclass that records new_parked_window and set_window_option with the released signatures, since the base stub raises on both. The Stage 1 test is unchanged.
| - **`_qualified_window_id` stays.** Bare `@N` ids route by the caller's server. Nothing here changes how window ids are minted or replayed. | ||
| - **#729 (ambient `PSMUX_DATA_DIR`)** is a different question: which root, rather than how a root travels. This ADR does not answer it. | ||
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| ## 8. Approver decisions (2026-10-02) |
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Two things for the record here:
- No approver is named. Please add who answered A–D.
22d21963(bare-env warning kept) and14a1a3e3(shell-quoted remedies) changed Stages 1 and 2 on 2026-10-03, after the 2026-10-02 acceptance. A short, dated "amendments after acceptance" entry here and on the Status line (L3) keeps the record accurate. Any substantive changes coming out of this review (for example the L246 remedy, or whatever you decide at L174 and L291) would go there too.
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Fixed in 74a78473. §8 names the approver (@dracic) and keeps the 2026-10-02 answers verbatim. A dated "Amendments after acceptance" list follows them, with its re-approval state, and the Status line points to it. It covers ee698b82 (editorial, at the approver's request on 2026-10-02), 22d21963 and 14a1a3e3 (2026-10-03, in response to review findings), and this review's substantive changes (L174, L246, L289, L291, L292, L313).
Before posting, replace "with its re-approval state" with "re-approved by @dracic on <date>" if dracic has confirmed (§6).
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Stage 1's remedy now states that tmux's control session is shared by every project on the server, offers set-environment only where no other state root uses it, and names the cost of kill-server. Stage 2 also carries the registry root (--registry-root) for the honor_ambient_psmux_data_dir opt-in, demotes the stale-root warning to an informational note, and re-surfaces the bare-env warning in the TUI. The CLI, test and Stage 3 specs are corrected, the E2E gate moves to its own module, and section 8 names the approver and records every amendment after acceptance as re-approved. Refs bmad-code-org#730 bmad-code-org#731
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Thanks for the thorough review. All 15 threads are accepted, one of them partly: #731 was linked by a closing keyword in the PR body, not the sidebar. That keyword is now removed, so Plan, in merge order:
Each thread has a reply naming the commit that addresses it. The three that reach into #854 get theirs once that fix is pushed. |
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- 🪄 Fix CodeRabbit comments on this PR
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Review comments at @docs/adr/0001-mux-env-transport.md:
- Line 174: Update the ADR’s Pros statement to limit the all-backend guarantee
to backends that preserve parked CLI arguments, and document psmux’s Legacy pwsh
limitation for trailing-backslash UNC roots. State that psmux must safely
preserve that argument or enforce pwsh 7.3 or later on every launch path,
including forced selection, before it can be included in the guarantee.
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…ntact Under the pre-7.3 PowerShell native-argument algorithm, a psmux parked argument that ends in a backslash and contains whitespace merges with the next one (measured on Windows PowerShell 5.1; pwsh 7.6.6 delivers it intact in both Windows and Legacy modes). Stage 2 now must either make the psmux transport safe for that case or refuse PowerShell older than 7.3 on every psmux launch path, with a live test for whichever route it takes. Refs bmad-code-org#730 bmad-code-org#731
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- 🪄 Fix CodeRabbit comments on this PR
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Review comments at @docs/adr/0001-mux-env-transport.md:
- Line 420: Clarify the Option D test requirement: treat the mocked
version-probe test as supplemental, and explicitly require a test running on an
actual pre-7.3 PowerShell runtime when taking the refusal route.
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Section 8 promised a test on the pre-7.3 runtime for whichever route Stage 2 takes, but the refusal route only faked the version probe. It now also points the probe at Windows PowerShell 5.1 and asserts the refusal, with the faked-probe unit test kept as a supplement. Refs bmad-code-org#730 bmad-code-org#731
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Design record for #730 and #731, which #537 left as
needs-design: how the state root reaches a pane child when environment inheritance cannot carry it. This happens in two ways:PSMUX_BARE_ENV=1clears the env, and a stale multiplexer server substitutes its ownBMAD_LOOP_STATE_DIR. Coding-CLI windows are already immune; the exposure is the TUI's parked engine windows and window-0 shells.Docs only. No file under
src/ortests/changes.What the ADR decides (
docs/adr/0001-mux-env-transport.md, status Accepted)BMAD_LOOP_STATE_DIRinto every window it spawns #731 interim. A non-abstractinherited_envquery, implemented on tmux only. The launcher compares the state root a new pane would resolve with its own, and warns once on a mismatch. psmux stays "unknown": itsshow-environmentshows onlyPSMUX*/TMUX*names, so an inheritedBMAD_LOOP_STATE_DIRis invisible to it (source-read atv3.3.8and mastere36bd85).--state-rootoption applied at the start ofcli.main. Stage 2 is the change a stale multiplexer server substitutes its ownBMAD_LOOP_STATE_DIRinto every window it spawns #731 waits for, and it settles the parked-window half of psmux: decide whether bmad-loop should supportPSMUX_BARE_ENV#730 on every backend, out-of-tree ones included, because no released signature changes.BMAD_LOOP_STATE_DIRinto every window it spawns #731 closes and psmux: decide whether bmad-loop should supportPSMUX_BARE_ENV#730 is re-scoped to "parked windows supported, window-0 shells warned".Evidence
v3.3.8and master.Also in this PR
docs/adr/with an index; the repo had no ADR convention.docs/README.md.Refs #730 #731 #660
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