# Usage reference This is the complete operator reference. If you are installing the package or starting your first run, begin with the README's [quick start](../README.md#quick-start). Existing users upgrading to `0.9.0` should read the [command migration](../README.md#upgrading-to-090) first. Use this reference when you need profiles, exact project mappings, model and budget precedence, CLI flags, retained state, recovery, or controller details. Wire-protocol and ACL details live separately in [coordination protocol v1](protocol-v1.md). ## Commands The Pi extension intentionally registers only `/or-dashboard`, `/or-models`, `/or-start`, `/or-send`, and `/or-stop`. The dashboard consolidates help, concise package metadata, running-session list/status, on-demand doctor, attach/watch, and confirmed stop. Duplicate `/orchestrator-*` and read-only helper slash commands are not registered. A user may start explicitly with `/or-start [task]` or ask Pi naturally, for example: `Describe the change. Use the orchestrator.` The natural-language path uses the `tmux_orchestrator` model tool and preserves the same preview, trust, and confirmation boundaries. The standalone CLI and model tool retain their full command/action surfaces. A regular interactive Pi session checks the public npm package metadata once at startup and shows a non-blocking warning only when a newer release is available. The dashboard's Tasklight-style About footer reuses cached update metadata and never starts another network check. Update with `pi update npm:pi-tmux-orchestrator`, or set `PI_TMUX_ORCHESTRATOR_DISABLE_UPDATE_NOTICE=1` to disable the startup check. Worker and controller sessions never perform this check. ### Profiles and exact project policy Execution profiles are deterministic thinking-level maps for the five built-in roles. They do not change models, tools, role authority, required review, workflow routing, result caps, or budget behavior. Select a packaged/custom profile explicitly for one run with: ```bash pi-tmux-agents start \ --project /absolute/path/to/project \ --task "Describe the requested change" \ --profile economy \ --dry-run ``` The strict user-global file `~/.pi/agent/tmux-orchestrator.json` supports global profiles and exact per-project orchestration defaults. Obtain every directory with `pwd -P`; all mapped directories must already exist when the file is read. A complete multi-project setup can look like this: ```json { "version": 3, "defaultProfile": "balanced", "profiles": { "review-heavy": { "implementer": "medium", "reviewer": "high", "probe": "low", "playwright": "medium", "django": "medium" } }, "projects": [ { "directory": "/Users/alice/Work/storefront", "profile": "balanced", "implementationFlow": "phased", "specialists": ["playwright"], "workspaceCapsule": false }, { "directory": "/Users/alice/Work/payments-api", "profile": "review-heavy", "roles": { "reviewer": { "thinking": "xhigh" } }, "implementationFlow": "phased", "specialists": ["probe", "django"], "workspaceCapsule": false }, { "directory": "/Users/alice/Work/docs-site", "profile": "economy", "implementationFlow": "single", "specialists": [], "workspaceCapsule": false } ] } ``` | Match | Resolved project policy | |---|---| | exact `storefront` directory | packaged `balanced`; phased flow; Playwright configured | | exact `payments-api` directory | custom `review-heavy`; reviewer `xhigh`; phased flow; probe and Django configured | | exact `docs-site` directory | packaged `economy`; single flow; specialists explicitly disabled | | no exact match | user-global `balanced`; packaged flow/specialist/workspace defaults | Configured specialists are still selected or skipped by the deterministic activation policy; listing one does not force it. Explicit run options override the exact project entry. Project `defaults` and `roles` may additionally select exact provider/model IDs from `/or-models`; omit them when no project-specific model override is needed. The README has a separate [model-override recipe](../README.md#4-override-models-only-when-needed). The file is relative to `PI_CODING_AGENT_DIR`; an absolute `PI_TMUX_ORCHESTRATOR_CONFIG` overrides its location. Legacy versions 1 and 2 remain accepted. Version 2 may select one default profile and define at most 16 complete custom thinking mappings. Version 3 adds at most 64 exact project mappings. Names match `[a-z][a-z0-9-]{0,31}`; packaged names cannot be replaced; every custom map must contain exactly implementer, reviewer, probe, Playwright, and Django. Unknown fields/roles, partial mappings, unsupported levels, credentials, and configuration paths inside the target project fail closed. A project mapping uses one existing canonical absolute `directory`. Matching is exact: there are no globs, prefixes, implicit parent matches, repository-name matches, or project-local policy files. Duplicate, relative, missing, non-directory, and symlinked entries fail closed. A mapping may select a profile, model defaults/role overrides, implementation flow, enabled built-in specialists, and the workspace-capsule default. It cannot configure trust bypass, forced specialists, prompts, skills, tools, writers, or reviewer authority. Packaged thinking mappings are: | Profile | Implementer | Reviewer | Probe | Playwright | Django | |---|---|---|---|---|---| | `economy` | `medium` | `medium` | `low` | `medium` | `medium` | | `balanced` | `high` | `high` | `medium` | `medium` | `medium` | | `thorough` | `xhigh` | `high` | `high` | `high` | `high` | `thorough` is the compatibility default and preserves the old packaged values. The checked simple/medium/multi-round profile baseline explicitly records comparative provider usage and quality as unavailable, so it supports no savings, equivalence, billing, recommended-default, or production claim. Run `node scripts/execution-profile-baseline.mjs --check` to validate that evidence availability record. Profiles change only thinking levels. They do not select models, add/remove roles, change tool authority, skip required review, alter result caps, or route workflow. Select a profile with `--profile NAME` or model-tool `profile`. Selection precedence is per-run profile, exact project mapping, user-global `defaultProfile`, then packaged compatibility default. Thinking and model precedence is explicit per-role/all-role override, exact-project role override, exact-project defaults, user-global role configuration, user-global defaults, then the selected profile/package fallback. Explicit flow, specialist, and workspace-capsule options override their project defaults. Dry-run, confirmation, manifest v5, status, list, and Supervisor reads expose the external config path, matched canonical directory, bounded profile metadata, and effective role levels. Manifest v4 retains profile metadata; older project-mapping metadata is reported unavailable. The model tool's `models` action and `/or-models [query]` expose a maximum of 100 available model metadata rows from the current Pi registry, respecting scoped models and never exposing authentication. Natural-language requests can use `useParentModel` for the current Pi provider/model/thinking or exact `all` and per-role `modelOverrides` after resolving ambiguous IDs with `models`. ### Budget policy The strict version-1 user-global file `~/.pi/agent/tmux-orchestrator-budgets.json` has this shape: ```json { "version": 1, "enforcement": "warn-only", "warning": { "run": { "operational_tokens": 600000 }, "role": { "operational_tokens": 200000 }, "assignment": {} }, "hard": { "run": {}, "role": {}, "assignment": {} } } ``` `PI_TMUX_ORCHESTRATOR_BUDGET_CONFIG` may select another absolute path outside the target project. The scopes are run, role, and assignment. Allowed metrics are `provider_calls`, `input_tokens`, `output_tokens`, `cache_read_tokens`, `cache_write_tokens`, `reasoning_tokens`, `operational_tokens`, `cost_total`, `context_tokens`, and `context_percent`. Integer thresholds are 1 through 1,000,000,000,000; cost is at most 1,000,000,000; context percentage is at most 100. Values must be positive and finite. Unknown/duplicate fields, credential or endpoint fields, unsafe files, and warning thresholds above matching hard thresholds fail closed. `null` disables an inherited file threshold. Precedence is per-run CLI/model-tool override, user-global file, then packaged warn-only defaults. CLI starts use `--budget-enforcement warn-only|hard` and repeatable `--budget-override LEVEL.SCOPE.METRIC=VALUE`; `=off` disables one inherited threshold. Overrides cannot repeat a threshold and are bounded by the 60 possible level/scope/metric combinations. The Pi tool uses a native `budgetOverrides` object. Dry-run and confirmation metadata show the fully effective policy without payloads. New broker databases retain that numeric/enum policy. Both `warn-only` and the compatibility `hard` mode are observational: no configured threshold changes workflow routing, blocks a tool, or interrupts a provider response. Missing provider values remain unavailable and never produce invented threshold facts. The worker bridge observes assignment-scope `provider_calls`, `context_tokens`, and `context_percent` at supported Pi tool boundaries. Provider calls are counted from the accepted assignment baseline. The first proven warning adds one bounded instruction to the next non-report tool result. A crossed hard threshold records a higher-severity fact but leaves every sequential or parallel tool, including `orchestrator_report`, available. Facts are immutable assignment-local numeric metadata visible in status, the dashboard (`G~` warning or `G!` hard), and Supervisor snapshots. Direct native-TUI steering and authenticated `send` remain normal operator choices; neither needs to bypass a budget. The operator decides whether to ask for a report, continue, restart, or stop. There is no live budget-resume command because thresholds never pause work. A worker restart restores warning/hard markers from its exact Pi session and cannot silently reset the assignment provider-call count. ### `start` Creates a detached tmux grid with an implementer, reviewer, broker/status monitor, and optional probe, Playwright, and Django roles. The monitor is an in-place, event-driven dashboard with full, compact, and narrow layouts. Worker turn, stream, tool, and report events refresh a bounded live phase marker and finalized usage directly; the monitor does not tail worker output, wait for a handoff, or poll broker state. Required: - `--task TEXT` or `--task-file PATH` Common options: - `--project PATH` - `--session NAME` - `--implementation-flow single|phased`: override the exact-project compatibility/simple or bounded inspect/plan default - `--profile NAME`: packaged or strict user-global execution profile; overrides an exact-project selection - `--context-capsule TEXT` or `--context-capsule-file PATH`: optional bounded parent recap - `--workspace-capsule` / `--no-workspace-capsule`: override the exact-project cold-assignment experiment default - repeatable `--workspace-relevant-path PROJECT_RELATIVE_PATH`: bounded existing parent-supplied hint; requires the experiment - `--approve-project`: separately confirmed Pi trust bypass for inspected projects - repeatable `--worker-skill ROLE=/absolute/path/SKILL.md`: explicit reviewed per-role skill opt-in - `--with-probe` / `--without-probe` and optional `--probe-task[-file]` - repeatable `--force-specialist probe|playwright|django` for an enabled role - `--with-playwright` / `--without-playwright` and optional `--playwright-task[-file]` - `--with-django-expert` / `--without-django-expert` and optional `--django-task[-file]` - `--rpc-workers`: headless RPC event panes instead of interactive TUI panes - `--attach` - `--dry-run` - `--skip-model-check` - `--budget-enforcement warn-only|hard` - repeatable `--budget-override LEVEL.SCOPE.METRIC=VALUE` (`=off` disables one) Model arguments use `--ROLE-provider`, `--ROLE-model`, and `--ROLE-thinking`. Thinking levels are `off`, `minimal`, `low`, `medium`, `high`, `xhigh`, and `max`. The model tool accepts a structured `contextCapsule` with optional current state, settled decisions, constraints, acceptance criteria, relevant paths, known evidence, open questions, and out-of-scope arrays. The invoking parent synthesizes it from context already present in that Pi turn; no summarizer agent or additional model request is used. The rendered capsule is at most 12 KiB. Do not copy a transcript, prompts, provider bodies, credentials, logs, or diffs. CLI callers may provide equivalent reviewed Markdown with the capsule options. The start confirmation shows only presence and character count. #### Experimental workspace capsule The disabled-by-default CLI flag above and model-tool `workspaceCapsule: true` select the same behavior for native TUI and headless RPC workers. The tool's `workspaceRelevantPaths` and repeatable CLI option accept at most 16 unique, normalized, existing project-relative paths of at most 256 UTF-8 bytes each. Paths without the opt-in flag are rejected. The slash-command TUI asks the same explicit experiment question and optionally accepts one path per line. Construction requires the supplied project to resolve to a canonical, non-symlink Git worktree root with an existing HEAD. The 8 KiB schema contains exactly: - schema version 1 and a SHA-256 identity of the canonical root; - initial Git HEAD and a `clean|dirty` observation; no diff, untracked-file content, or complete tree is copied into the capsule; - at most 16 project-relative governing instruction paths and SHA-256 hashes, never instruction contents; - regular-file names selected from a fixed 16-name top-level build/test marker allowlist; and - the sorted parent-supplied relevant paths. The constructor directly probes only the allowlist and instruction candidates at the root and ancestors of supplied relevant paths. It never enumerates or serializes a complete repository tree; Git may inspect the worktree internally to produce the clean/dirty observation. Every path component is checked with non-following metadata; absolute, `..`, missing, duplicate, non-normalized, unknown, symlinked, count-overflow, byte-overflow, invalid UTF-8, and oversized instruction files fail closed. Marker and instruction candidates that are symlinks also reject construction. Canonical-root identity is a trust binding, not authorization. Pi context discovery stays enabled: no `--no-context-files` flag is passed. Capsule paths/hashes supplement the baseline but do not authorize a path or substitute for workers discovering and reading `AGENTS.override.md`, `AGENTS.md`, or `CLAUDE.md` and their referenced/scoped instructions through Pi/project mechanisms. Instruction precedence mirrors Pi's candidate order for the directories touched by relevant paths. The CLI rebuilds the capsule on each dry-run and confirmed start. The broker validates its exact shape and current root/HEAD/instruction/marker/relevant-path identity when reading the transient startup payload, immediately before initial baseline delivery, and before any live in-memory baseline replay. Mismatch is rejected as stale. Clean/dirty is explicitly an initial observation rather than an invalidation key: normal implementation edits do not break late delivery or restart replay while HEAD and discovery hints still match. A changed HEAD, instruction identity, marker set, missing path, or new symlink makes a restart handover/workflow `uncertain` instead of replaying stale hints. Broker-process recovery after startup deletion has no capsule cache to reconstruct or trust. The capsule exists only in the mode-`0600` transient startup payload, live broker memory, and worker baseline/Pi session context. Initial routing deletes the startup copy. It never enters the retained manifest, SQLite, status, dashboard, Supervisor API, RPC registry/journal, project files, or any cross-run cache. Adding cross-run persistence would require a separately reviewed explicit privacy, retention, and invalidation policy. Public dry-run/confirmation output is limited to enabled/disabled, schema, validation, counts, bytes, and digest; no capsule path list or body is exposed. Existing manifest v1-v4 readers remain compatible. A new baseline body may alter a provider's cache prefix, and provider-specific serialization/cache boundaries can outweigh local byte proxies. The checked synthetic Python and Node fixtures report exactly 733 and 886 UTF-8 workspace-hint bytes added by the capsule; disabled runs add zero. Conceptual worker discovery operation proxies change 4→2, while capsule construction is reported separately as 39/53 operations. Serialized worker discovery-result bytes remain unavailable because the fixture does not fabricate tool/model transcripts or use a complete repository-tree baseline. Provider calls, provider tokens/cost, reviewer findings, checks, revisions, and correctness are also explicitly unavailable. The fixture therefore proves neither savings, provider-call reduction, nor correctness equivalence and cannot justify a default change or progression beyond the opt-in experiment: ```bash python3 scripts/workspace-capsule-baseline.py --check ``` Worker skill discovery is disabled by default for both TUI and RPC starts. The CLI option above and the model tool's `workerSkills` object are the only new-run skill opt-in surfaces. A selected role must be enabled; each Markdown file must be a non-symlink readable UTF-8 file no larger than 256 KiB, with at most eight skills per role. The start preview lists exact paths and private manifest metadata binds each path to its reviewed SHA-256 digest. Worker launch and restart fail closed if a selected file disappears or changes. Skills cannot expand a role's tool allowlist, so read-only roles stay without `edit`/`write`. Workers replace Pi's general coding prompt plus appended role prompt with one lean role prompt. The stable common prefix contains active-tool guidance before role/project-specific authority and safety rules. Pi still appends governing `AGENTS.md`/`CLAUDE.md` context and any explicitly selected skill. The model-free built-prompt fixture for Pi 0.84.1 records 5,000 before and 2,479 after normalized reviewer characters (50.4%); these are serialized prompt-size proxies, not provider tokens, cost, cache efficiency, or production acceptance. #### Implementer inspect/plan reports A broker assignment whose retained role/kind is `implementer`/`plan` switches the shared worker bridge to `read,bash,grep,find,ls,orchestrator_report`. Edit, write, and any other non-plan tool call are removed and blocked until the terminating plan is accepted; restart reapplies this policy from the retained assignment. `bash` remains available for bounded inspection and is not an OS sandbox, so the worker is also explicitly instructed not to modify the worktree. The report requires exactly `kind`, `summary`, `relevant_paths`, `relevant_symbols`, `intended_changes`, `required_checks`, `risks`, and `open_questions`. Summary is at most 1,000 characters; each array has at most 12 strings of at most 300 characters; paths are relative; the canonical result remains at most 32 KiB. Changed paths, executed checks, findings, limitations, approval, and verdict fields are invalid. The broker also verifies that report kind matches the active assignment before atomically accepting one report. The latest plan is projected into the rolling run-state capsule. Only existing kind/count/usage metadata enters SQLite or Supervisor/status output; the plan body remains ephemeral/Pi-session state. `--implementation-flow phased` and model-tool `implementationFlow: "phased"` select this path for complex tasks. Plan acceptance first delivers the latest bounded run state, then creates a distinct same-round `implementation` assignment. The worker bridge retains a newer assignment that arrives while the terminating plan tool awaits its broker response, so no acknowledgement-only provider turn is needed. At the next provider request, inspection assistant/tool turns are pruned; baseline, accepted plan, direct steering, and current implementation turns remain. `single` is the compatibility default and starts directly with implementation. Reviewer-requested repair rounds also start directly with implementation and receive the latest reviewer/specialist state. The fixed six-read synthetic fixture reports 49,462 to 671 serialized characters at the first implementation request, a 98.6% context-size proxy reduction. It explicitly records provider calls, provider tokens/cost, failed checks, and missed findings as unavailable and makes no savings or quality claim. Validate it with `node scripts/phased-implementation-baseline.mjs --check`. #### Specialist activation gates Enabling a specialist configures it; it does not mean every deterministic skip predicate must wake it. The broker uses no extra model call and stores no task or path body in its decision state. Rules are fixed and versioned: | Role | Run | Skip | |---|---|---| | probe | forced; initial high-risk task terms; ambiguous task/path evidence; non-documentation repair paths | clear initial docs/typo task or docs-only repair paths | | playwright | forced; browser/frontend suffix; empty or ambiguous non-documentation paths | docs-only changed paths | | django | forced; Django file/directory marker; empty or ambiguous paths | docs-only or clearly frontend-only changed paths | Initial probe classification uses the ephemeral task before startup payload deletion. Later decisions use the bounded implementation `changed_paths` array. Unknown, empty, or malformed evidence runs the configured role. Repeat `--force-specialist ROLE` or pass model-tool `forceSpecialists` only for enabled roles that the operator explicitly requires. Forced roles always produce an actual report before reviewer assignment; no deterministic skip can satisfy that requirement. SQLite schema v7 and public projections contain only role, round, `run|skipped`, versioned rule ID, and forced boolean. The rolling capsule adds the same bounded decision and `required|reported|not-required` evidence status. The reviewer therefore sees which configured roles ran or were skipped without receiving a classifier prompt or persisted task/path content. Probe and Playwright reports remain synthetic/local evidence and cannot claim production acceptance. The checked docs/frontend/Django/empty-path fixture selects 8 of 12 configured assignment opportunities, a 4-assignment proxy reduction. Provider calls, tokens, cost, and quality are explicitly unavailable; validate the no-claim fixture with `python3 scripts/specialist-activation-baseline.py --check`. #### Worker result-volume limits The worker bridge, and not ordinary Pi, applies these fixed orchestration-only limits in both TUI and RPC modes before a result reaches the next provider call: | Tool | Input default/cap | Emitted result cap | Retention/guidance | |---|---|---|---| | `read` | `limit=400`; explicit larger limits become 400 | 16 KiB and 400 lines, head | next targeted `offset` and `limit<=400` | | `grep` | `limit=40`; `context<=2` | 16 KiB and 240 lines, head | refine pattern/path/glob; use `read` for exact lines | | `bash` | unchanged | 24 KiB and 400 lines, bounded head + failure diagnostics + tail | mode-`0600` full-output file or Pi's existing path; inspect a targeted slice | The byte cap includes the continuation notice. UTF-8 truncation does not split a multibyte character. The bash diagnostic excerpt recognizes bounded failure, error, assertion, fatal, panic, and `not ok` lines so a large successful-looking prefix or tail does not hide safety-critical test evidence; the command ending is retained as well. Private Pi session entries record schema version, assignment ID, tool/direction enums, truncation/input-cap booleans, and numeric source/emitted line and byte counts. If the immediately following tool is another read page or a refined grep, a second metadata entry records only that classification. Paths, search patterns, commands, result bodies, logs, and full-output contents are not copied into metadata, SQLite, status, the dashboard, or Supervisor output. The checked synthetic result-volume baseline reports 144,491 before versus 89,733 after serialized UTF-8 provider-context bytes (37.9% reduction), while read and grep pagination add two provider calls across the three scenarios: ```bash node scripts/result-volume-baseline.mjs --check ``` This is a deterministic context-size and call-count proxy, not provider tokens, billing, quality evidence, or production-wire acceptance. Tune a future policy only with this benchmark plus retained metadata and real provider/quality evidence; missing provider data remains unavailable. All newly started runs use broker protocol v1. `--rpc-workers` does not select a different coordination protocol. RPC panes are a plain headless automation view; interactive TUI panes are the default and retain Pi's native highlighting, tool rendering, and input editor for direct steering. ### `dashboard` `/or-dashboard` opens a bounded Pi-native overlay containing every running managed orchestration and a compact local About footer with the installed version, repository, issues, npm, and contribution details. Opening and refreshing load the session list but never run doctor. Session rows show workflow/round, selected profile, linked roles, provider calls, operational tokens, provider-reported cost when complete, and current context pressure when available. Unavailable provider fields remain unavailable rather than estimated. Use arrows or `j`/`k` to select, Enter to watch and attach, `x` to confirm stop, `r` to refresh sessions, `d` to explicitly run and toggle doctor, `?` for help, and `q`/Escape to close. Refresh is explicit; the overlay starts no timer or background poll. Attach requires the invoking Pi to be inside tmux. Pi's current public overlay API does not route row-click callbacks to extension components, so true mouse activation is deferred. ### `list` Lists live tmux sessions marked as Pi Tmux Orchestrator grids. The Pi dashboard uses this projection directly. Omitting `[SESSION]` from `/or-send` or `/or-stop` opens a selector populated from the same metadata-only list. Each option shows the exact session and project; invalid orchestration metadata is excluded. ### `status [SESSION]` Shows bounded pane metadata, broker workflow state, role lifecycle, actual provider token totals when available, and context pressure. The live broker pane presents the same metadata hierarchy with exact configured provider/model/thinking values, assignment/generation where available, assignment-bound live phase and pulse metadata, soft-budget warnings, assignment guardrail markers, a bounded metadata-event rail, and attach/status/stop help. Healthy/success is green, active is cyan, attention/budget is yellow, error/uncertainty is red, and secondary metadata is dim. `NO_COLOR`, `TERM=dumb`, and non-TTY output remain plain. Neither view prints workflow payload bodies. See [broker dashboard design](dashboard-design.md) for the operator hierarchy, wireframe, responsive contract, and omissions. ### `attach [SESSION]` Switches the existing tmux client when already inside tmux or attaches from outside. JSON mode is allowed only for the in-tmux `switch-client` path used by the Pi extension; it never attempts to replace or suspend the invoking Pi process. Prefix then `L` is the detach/return operation: it switches that exact client back to the invoking Pi while leaving the worker grid running and without changing the Pi's original project context. Attach observes future workflow transitions, but an existing initial `ready`, `uncertain`, or `needs_attention` state produces only bounded non-triggering progress; historical reports are not replayed as a new parent task. Use explicit model-tool `watch` when the current Pi should assess an existing actionable outcome. Reattach with the same `attach` command. ### `send SESSION --role ROLE --message[-file] ...` Sends one operator message through the authenticated broker bridge. `steer` and `follow-up` delivery are supported. A successful response acknowledges acceptance; completion is observed through lifecycle/events. If the workflow is already `ready`, an accepted implementer message conservatively opens exactly one new implementation round: the broker queues the latest run state and operator message without an unassigned provider turn, creates the implementation assignment, and requires normal specialist routing and mandatory review again. Retry of the same command ID does not open another round. Messages during an active workflow retain normal steering behavior. When the workflow is `needs_attention`, a send must target a waiting role that still owns the active assignment; other role sends are rejected so they cannot mask the unresolved assignment or trigger an unassigned provider turn. The workflow returns to `active` only when that assigned worker reports lifecycle `active`. Use `--command-id` with a 32-character lowercase hexadecimal ID for retry-safe deduplication. Conflicting reuse is rejected. An interrupted unprovable delivery is `uncertain` and requires explicit retry. ### `abort SESSION --role ROLE` Requests broker-bridge abort for either TUI or RPC presentation. Abort acceptance does not prove the provider operation reached a terminal state. ### `restart SESSION --role ROLE ... --yes` Respawns one role's worker process through a broker-authoritative generation handover and reopens its exact Pi session ID, preserving the conversation and complete JSONL history. The live broker replays the bounded baseline and materializes the latest coalesced run-state capsule, including evidence deferred while the role was active, before recovering an accepted active assignment. A local respawn failure, replacement disconnect, broker interruption, or unprovable assignment remains `uncertain`; it is not blindly replayed. ### `stop SESSION --yes` Kills only the selected tmux grid. Pi sessions and metadata-only broker state remain under `~/.pi/agent/orchestrations/`. ### `doctor [--project PATH]` Checks Pi, Python, tmux, tmux extended-key settings, model and budget configuration paths, the exact canonical project mapping, effective profile, and configured model availability without a provider request. This bounded metadata appears in the dashboard only after the user presses `d`. The CLI project defaults to the current directory. ### `supervisor ...` Supervisor API v2 reads retained state without tmux runtime observation: ```bash pi-tmux-agents --json supervisor capabilities pi-tmux-agents --json supervisor sessions pi-tmux-agents --json supervisor runs SESSION pi-tmux-agents --json supervisor snapshot SESSION --run RUN_ID pi-tmux-agents --json supervisor usage SESSION --run RUN_ID --limit 100 pi-tmux-agents --json supervisor events SESSION --run RUN_ID \ --cursor implementer=0 --cursor reviewer=0 --limit 50 ``` Host liveness is `not_observed`; retained PIDs do not imply a running process. `supervisor usage` is a bounded metadata-only page grouped by run, role, round, and assignment kind. Each role contains separately labeled cumulative usage and immutable assignment-local deltas. Input, cache read, cache write, output, optional reasoning, provider-call count, provider-reported cost, operational tokens, and context pressure remain separate fields. Legacy assignments expose usage as unavailable rather than estimated. `--limit` selects the latest retained assignments across the run and the response reports when older results were truncated. ## Parent Pi supervision When the package extension starts a run, the invoking Pi itself is the parent supervisor and opens an authenticated, read-only broker observer. Starting a normal run creates one detached worker grid; it does not start a second parent Pi, parent window, or persistent controller. Use the model tool's `watch` action to subscribe the invoking Pi to a compatible existing run without changing the terminal. Use Enter on a selected `/or-dashboard` row or the model tool's `attach` action to watch future transitions and switch the invoking Pi's existing tmux client into the live worker grid. An existing initial actionable outcome is shown only as non-triggering progress; explicit `watch` requests existing-outcome supervision. Select panes with normal tmux keys and type directly into a native Pi worker's input editor to steer it. Prefix then `L` returns that exact client to the same invoking Pi and original project context; the workers and observer continue running, so attach/detach can be repeated. Pi exposes no supported terminal-suspension API for an outside-tmux parent, so seamless in-place attach deliberately requires the invoking Pi to already run inside tmux. Tmux remains the live worker view. The observer does not mirror raw worker logs into the parent. It shows bounded non-triggering lifecycle and report-received progress, sends bounded structured role reports when the workflow becomes `ready`, and sends attention/uncertainty updates when parent intervention is required. Terminal updates trigger the parent Pi to assess results and decide follow-up. Metadata-only `status` summaries include the workflow and role states so completion is legible even before an observer is attached. For current broker runs, status adds one bounded latest-assignment usage line per role, and the dashboard token cell uses `cumulative/+latest-assignment` without adding a new payload hierarchy. Observer report bodies are bounded, held only in broker memory while live, and stored only in the relevant Pi sessions. They are excluded from SQLite, status, journals, registries, and Supervisor API output. Terminal-started detached runs remain supported without a parent observer. Parent observation requires a broker process from `0.6.0` or later; retained runs hosted by an older broker remain status-readable but cannot be retrofitted with live report observation. ## Event-driven workflow 1. Every worker bridge connects to the owner-only run socket. 2. The broker adds task/role baseline plus the optional parent context capsule to each Pi session without waking idle roles. 3. It triggers the optional initial probe and either a direct `implementation` assignment (`single`) or a read-only `plan` assignment (`phased`). 4. In phased flow the accepted plan becomes rolling run state and a distinct same-round `implementation` assignment; in both flows the implementer ends implementation with `orchestrator_report`. 5. The initial probe and each round's configured specialists are deterministically run or skipped. Forced roles run, and reviewer assignment waits for every activated report while exact skips count as not required. 6. Accepted evidence and bounded activation metadata update one latest-per-role run-state capsule bounded to 16 KiB of UTF-8; recipients no longer accumulate one context body for every historical report. Updates targeting an active role are coalesced until its next assignment. 7. The broker supplies the latest run state to the reviewer and wakes it once. 8. `changes_requested` supplies the coalesced latest run state and starts the next implementation round. 9. Acceptance of each distinct new assignment emits one metadata-only `context_boundary` event. Pi still invokes context projection for every provider request, but only that boundary changes the pruning policy; every assistant/tool turn in the current assignment remains visible across requests. 10. A confirmed restart replays the live in-memory baseline and latest coalesced run state, including a pending replacement deferred during the active assignment, before recovery without creating a second boundary for that assignment. 11. `approved` marks the run ready without waking the implementer for an acknowledgement turn. 12. An attached parent observer returns the latest structured reports to the parent Pi. The terminating report tool avoids an extra post-report provider turn. Idle workers end their turn and never sleep or poll. A watching parent also ends its turn and relies on broker events instead of sleeping or repeatedly polling status/tmux. Non-terminal progress does not start a turn when the parent is idle; if the parent is already active, progress is steered in before its next model step. Timeouts detect failure; they do not schedule workflow transitions. The deterministic two-round context regression measures serialized provider-visible message characters before and after a new assignment boundary. Its current fixture drops from 99,170 to 8,678 characters (91.2%); CI requires at least a 50% reduction. A separate regression proves multiple assistant/tool turns accumulate throughout one assignment and remain until the next boundary. These are stable context-size proxies, not provider-specific token savings or production-wire acceptance. Cumulative usage and current context occupancy remain separate Pi/provider metadata. Report fields, limits, ACLs, acknowledgements, deduplication, retry, crash semantics, and token accounting are specified in [protocol-v1.md](protocol-v1.md). ## Durable state Files remain for: - mode-`0700` run/session directories; - mode-`0600` manifests and authentication tokens; - Pi's complete JSONL sessions; - one mode-`0600` metadata-only SQLite database; - a transient startup payload deleted by the broker immediately after reading. The live broker's rendered role baselines, bounded accepted report evidence, and run-state capsules needed for confirmed handover replay are ephemeral. Its copies are lost on broker exit and never enter SQLite, status, dashboards, registries, journals, or the Supervisor API; an interrupted handover fails closed as `uncertain`. New workers never create or poll Markdown reports, readiness markers, mailbox payload files, or relay-seen files. The database excludes task, assignment, report, prompt, message, provider, diff, and log bodies. Retained manifests from `0.4.x` remain compatible with legacy readers and controls. There is no option to start that protocol in current releases. ## Token accounting and budgets The worker bridge reports Pi/provider values for: - provider-call count; - input and output tokens; - cache-read and cache-write tokens; - reasoning tokens when exposed; - total cost; - current context tokens/window/percentage; - peak observed context tokens for each assignment when available. At each accepted assignment boundary the worker records a numeric cumulative baseline outside model context. Its terminating report carries current cumulative usage and the assignment-local delta. Report metadata, cumulative role usage, and one immutable assignment usage result commit together before any specialist/reviewer/next-round routing. Duplicate reports cannot overwrite that result, and restart recovery reuses the recorded baseline rather than starting from zero. Unavailable values remain unavailable; no provider token estimate is invented. Retained reports created before assignment accounting expose usage as unavailable. Status and Supervisor API expose cumulative per-role/total usage, each role's latest assignment usage, and current context occupancy without payload bodies. The packaged policy preserves the existing soft role/run operational-token warnings. Assignment provider-call and context-pressure thresholds are observed inside the worker at tool boundaries. Warning and hard levels differ only in visible severity; neither blocks non-report tools nor downstream assignments. Budget configuration cannot silently skip required review, mark a workflow ready, or otherwise alter routing. The categories have different meanings and costs: - input is provider-reported non-cached or otherwise provider-classified input; - cache read/write records provider-reported cache activity and must not be presented as uncached input; - output is generated assistant output; - reasoning is separate only when the provider exposes it; - context occupancy is a current-window measurement, not cumulative usage; - cost is authoritative only when the provider reports it. For development comparison, `operational_tokens` means input + output + cache read + cache write. It is deliberately labeled as an operational aggregate, not a billing unit or estimate of provider charges. The source repository includes a checked-in model-free baseline: ```bash node scripts/token-efficiency-baseline.mjs --check ``` It measures serialized provider-visible characters/UTF-8 bytes by synthetic provider call and tool-result characters by tool across simple, medium, and multi-round fixtures. These values are reproducible proxies only. The retained usage analyzer reads public broker metadata without reading Pi histories or any workflow/provider body: ```bash python -m pi_tmux_orchestrator.token_efficiency \ --state-root ~/.pi/agent/orchestrations --max-runs 100 ``` ## Pre-release extension acceptance To test the exact checked-out extension before a version bump, tag, publication, or installation over the released package, use the staged-artifact workflow in [`prerelease-testing.md`](prerelease-testing.md). It produces a persistent local package root plus commit/tarball provenance, proves package discovery in a disposable provider-free Pi home, and documents a separately explicit temporary `-e` test with real authentication and rollback. No custom-role registry is required or included. ## Security boundaries - Only the implementer receives normal write tools. - Read-only roles retain `bash` and are governed by explicit role instructions; they are not OS-sandboxed. - Run directory `0700`; socket/database/token files `0600`. - Independent role tokens and control token; broker enforces role/report ACLs. - Same-user peer credential validation where supported. - No Pi/provider credential reading or copying. - No TCP listener, cloud service, external message queue, or package dependency. - Project trust remains explicit and mandatory. - Status, journals, registries, and Supervisor API never include workflow payloads. - No exactly-once claim: crash ambiguity is `uncertain`. ## tmux navigation ```text Ctrl-b q show pane numbers Ctrl-b arrows move between panes Ctrl-b z zoom/unzoom current pane ``` Recommended for tmux 3.5+: ```tmux set -g extended-keys on set -g extended-keys-format csi-u ``` ## Troubleshooting ### Existing session name Use `status`, explicitly stop it, or select another `--session`. The tool never replaces an existing tmux session. ### Worker is `disconnected` Inspect its pane. The bridge reconnects with bounded exponential backoff without using model turns. A transition in an unprovable window remains `uncertain`. ### Worker is `waiting` Pi settled while an assignment remained open, usually because it did not call `orchestrator_report`. The broker marks the workflow `needs_attention` and an attached parent Pi receives an event-driven update that identifies the waiting role. Send one focused reminder to that role or restart it; sends to idle roles without the blocking assignment are rejected. The broker does not run an unlimited reminder loop. ### Broker pane exited Workflow delivery stops. Do not start a legacy relay. Preserve the worktree and restart or stop/recreate the brokered run after inspecting retained state. ### Project trust prompt Approve each interactive child only after inspection, use saved/global trust for RPC presentation, or restart with a separately confirmed `--approve-project`.