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Author SHA1 Message Date
aefcc9b5c0 feat(fleet): F4 Phase 2a — Matrix CS-API connector client + factory (#616)
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Implements the Matrix connector behind the F4 abstraction (stacked on #617).
Speaks the Matrix client-server API directly over HTTPS (injectable fetch, no
SDK) so it is homeserver-agnostic (Conduit default, Synapse alt).

- MatrixConnector implements OrchestratorConnector:
  - send  → PUT /_matrix/client/v3/rooms/{room}/send/m.room.message/{txn}
            (thread-aware via m.thread relation), returns event_id.
  - subscribe → /sync long-poll loop driven by the pure parseSyncResponse
            (skips the orchestrator's own echoes; carries threadId).
  - health → /_matrix/client/versions (reachable) + /account/whoami (authed).
- Pure helpers buildMessageBody + parseSyncResponse → send/receive unit-testable.
- registerMatrixConnector(env) registers the factory; the access token comes from
  MATRIX_ACCESS_TOKEN, never the roster.

Verified: 13 Matrix + 7 registry = 20 connector tests green; tsc/eslint/prettier
clean. Still a self-contained connectors/ module (no fleet.ts changes).

Stacked on #617 (F4 Phase 1). Merge order: #617 -> this; rebases onto main after.

Refs #616, #613

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EsgTQzV5YUGk1JtCLP4B83
2026-06-22 03:17:58 -05:00
85a93428eb feat(fleet): F4 Phase 1 — orchestrator chat connector abstraction + Matrix design (#616)
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From the north-star (#613) orchestrator-chat-connector decision: make the
orchestrator's chat channel a pluggable, user-chosen connector (tmux | discord
| matrix peers) and add Matrix (local homeserver) — starting with the small
uniform abstraction so connectors drop in without touching fleet core.

Phase 1 (this PR — design + scaffold):
- src/fleet/connectors/types.ts: OrchestratorConnector interface (send /
  subscribe / health per the Lead's spec) + message/config types; thread-aware
  via optional threadId so Matrix threads + the future first-party Mosaic
  Discord plugin fit without an interface change. DEFAULT_CONNECTOR_KIND=tmux.
- src/fleet/connectors/registry.ts: extensible factory registry;
  resolveConnectorKind defaults tmux (back-compat); createConnector throws
  ConnectorNotImplementedError until Phase 2 registers factories.
- roster.schema.json: optional connector block (tmux|discord|matrix; matrix
  homeserver/user/room). Secrets via env (gateway pattern), never the roster.
- docs/fleet/f4-matrix-connector.md: interface, config, Matrix client-server API
  mapping, Conduit-default local homeserver, phasing, back-compat.

Self-contained connectors/ module — NO fleet.ts changes, so independent of the
in-flight stacked fleet-config PR (#615).

Verified: 7 connector tests green; tsc/eslint/prettier/sanitize clean; schema
valid JSON.

Refs #616, #613

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EsgTQzV5YUGk1JtCLP4B83
2026-06-22 03:11:31 -05:00
12 changed files with 16 additions and 465 deletions

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@@ -4,23 +4,6 @@
variables:
- &node_image 'node:22-alpine'
- &enable_pnpm 'corepack enable'
# Heavy kaniko image builds (~25 min) — gate them so a merge that only touches
# the npm-only CLI (@mosaicstack/mosaic) or docs does NOT rebuild the platform
# images (gateway/appservice/web do not depend on @mosaicstack/mosaic). Releases
# (tags) always build everything. Exclude-list keeps the default SAFE: any
# non-excluded change still builds, so no transitive dep can silently go stale.
# (Woodpecker: `when` entries are OR'd; `path` applies to push/PR only — hence
# the separate `event: tag` entry.)
- &image_build_when
- event: tag
- event: [push, manual]
branch: main
path:
exclude:
- 'packages/mosaic/**'
- 'docs/**'
- '**/*.md'
- '.woodpecker/**'
when:
- branch: [main]
@@ -43,15 +26,6 @@ steps:
publish-npm:
image: *node_image
# Publish only when a publishable package changed (or on a release tag); a
# pure-docs merge runs no publish. Cheap step, but gated for cleanliness.
when:
- event: tag
- event: [push, manual]
branch: main
path:
include:
- 'packages/**'
environment:
NPM_TOKEN:
from_secret: gitea_token
@@ -117,7 +91,6 @@ steps:
build-gateway:
image: gcr.io/kaniko-project/executor:debug
when: *image_build_when
environment:
REGISTRY_USER:
from_secret: gitea_username
@@ -143,7 +116,6 @@ steps:
build-appservice:
image: gcr.io/kaniko-project/executor:debug
when: *image_build_when
environment:
REGISTRY_USER:
from_secret: gitea_username
@@ -169,7 +141,6 @@ steps:
build-web:
image: gcr.io/kaniko-project/executor:debug
when: *image_build_when
environment:
REGISTRY_USER:
from_secret: gitea_username

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@@ -59,14 +59,6 @@ Active workstream is **W1 — Federation v1**. Workers should:
- Status: implemented + tested. Closes R13: `mosaic update` now re-seeds the framework (data-safe MOSAIC_SYNC_ONLY) after the CLI install so shipped launcher/runtime changes activate; `--relaunch` restarts rostered agents; `--no-reseed` opts out. Detail: scratchpads/f3-m3-update-reseed.md.
## Fleet-polish bundle — boot-survival symmetry (#611) — feat/fleet-polish-bundle
- Status: MERGED to main. disable-on-remove (boot-resurrection bug, TDD) + add-enable + init-R5 hard guarantee. 4 new + 147 existing fleet tests green. Detail: scratchpads/fleet-polish-bundle.md.
## Fleet enhancer role + two-agent floor (#614) — feat/fleet-enhancer-floor
- Status: MERGED to main. enhancer added to 4 presets; init guarantees 1 orchestrator + >=1 enhancer; remove protects the sole enhancer; enhancer role doc. 155 fleet tests green. Detail: scratchpads/fleet-enhancer-floor.md.
## F4 — Orchestrator chat connector + Matrix (#616) — feat/f4-matrix-connector
- Status: Phase 1 MERGED (#617: connector interface send/subscribe/health + registry + roster schema + design). Phase 2a (#618): Matrix CS-API client + factory. 20 connector tests green; no fleet.ts changes. Remaining Phase 2: init/configure connector-selection UX + roster wiring, systemd launch wiring, Conduit deploy guide. Detail: scratchpads/f4-matrix-connector.md.
- Status: Phase 1 done (abstraction + scaffold). Connector interface (send/subscribe/health) + registry + roster connector schema + design doc; tmux default/back-compat; matrix factory + CS-API client landed (Phase 2a, #617-stacked); 20 connector tests green; no fleet.ts changes (independent of #615). Detail: scratchpads/f4-matrix-connector.md.

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@@ -73,37 +73,6 @@ diff-sanity → squash-merge → verify), **decide-and-inform** cadence, and a d
this model. See `mosaicstack-aiguide` whitepapers 01 (inter-agent comms) and 03
(orchestration model) for the rationale.
## Fleet roster — the two-agent floor and the role library
A fleet is **never a single agent**. The minimum viable fleet is **two**:
| Role | Mandate | Boundaries |
| ---------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
| **Orchestrator** | The user's **single point of contact**. Owns the general flow, keeps agentic actions on-target, and **adds/removes agents from the fleet at will** to meet goals and user needs. Exactly **one** per fleet (the existing R5 invariant). | Delegates source work; never the sole worker. |
| **Enhancer** | The fleet's **continuous-improvement loop**. Monitors fleet activity, analyzes for enhancements/optimizations, builds a **plan of remediation**, and — **with the orchestrator** — upgrades fleet capability: tool creation/repair, skills, harness improvements, and **bug reports filed to Mosaic Stack** for proper remediation. Recommends which agents are needed. | **Does not code, review code, or perform delivery tasks.** Improvement and diagnosis only. |
> **Why two, not one:** the orchestrator drives delivery; the enhancer makes the fleet
> _get better at delivering_ over time. The enhancer is how the fleet self-heals its tools,
> skills, and harnesses, and how real defects flow back to Mosaic Stack as bug reports.
> Together they are the irreducible core — every other role is added on demand.
A **general** fleet starts at this floor: the orchestrator (advised by the enhancer)
materializes whatever roles prove necessary over the mission's life. Specialized presets
(coding, research, etc.) seed additional roles up front, but all reduce to the same two-agent
spine plus an on-demand **role library**:
| Role profile | Purpose |
| ------------------- | --------------------------------------------------------------------------------- |
| **orchestrator** | point of contact, flow control, fleet composition (1 per fleet) |
| **enhancer** | fleet monitoring, optimization, tool/skill/harness upgrades, upstream bug reports |
| **coder** | implementation (worker; stops at PR-open) |
| **code review** | independent code review gate |
| **security review** | security/auth/secret review gate |
| **research** | investigation, synthesis, options analysis |
| **board** | deliberation panel — moonshot, contrarian, technical, business, financial lenses |
| **operations** | infra, deploy, health, incident response |
| _…extensible_ | new profiles added as missions demand (orchestrator + enhancer decide) |
## Invariants — "maximal vision, incremental delivery, zero foreclosure"
Every artifact, starting Phase 2, MUST:
@@ -133,7 +102,7 @@ Every artifact, starting Phase 2, MUST:
| ---------------------- | -------------------------------------------------------------------------------------------------------------------------------------------- | ------- |
| 01 | tmux PoC, hardening, published CLI v0.0.34 (#565#568) | ✅ done |
| **2 — Observability** | `fleet ps` (host+tenant aware join), heartbeat protocol + dogfood stub answers it, `agent watch` (read-only), `agent send --verify` receipts | ▶ now |
| 3 — Real runtimes | claude/codex/pi/opencode answer heartbeat; **hybrid lifecycle** (core always-on: **orchestrator + enhancer**; ephemeral workers per lane) | planned |
| 3 — Real runtimes | claude/codex/pi/opencode answer heartbeat; **hybrid lifecycle** (core always-on: orchestrator+reviewer; ephemeral workers per lane) | planned |
| 4 — Unified definition | one agent schema in gateway; `mosaic agent --new` → materialized per-tenant session; uid-tenant provisioning | planned |
| 5 — Control plane | federation-backed cross-host × cross-tenant fleet view; **webUI** (surface chosen then) for MVP-X1 parity | planned |
@@ -152,28 +121,6 @@ Every artifact, starting Phase 2, MUST:
runtime-bin on PATH (baked into the pane command) + boot-survival (`enable` + linger),
which `fleet init` should automate.
## Decisions of record (2026-06-22, with Jason)
- **Two-agent floor:** every fleet has, at minimum, an **orchestrator** and an **enhancer**.
The orchestrator is the user's point of contact and composes the fleet; the enhancer runs the
continuous-improvement loop (monitor → analyze → remediate → upgrade tools/skills/harness →
file Mosaic Stack bug reports) and **does not code or review**.
- **Role library:** orchestrator, enhancer, coder, code review, security review, research,
board (moonshot/contrarian/technical/business/financial), operations — extensible; the
orchestrator (advised by the enhancer) adds roles as missions demand.
- **Orchestrator chat connector:** the orchestrator is reachable over a user-chosen connector
(tmux now; Telegram/Discord/Matrix/Slack configurable). Validated live: **"Mos" orchestrator
on Discord** via the Claude Code discord channel plugin (w-jarvis).
## Future enhancements (north-star, post-MVP — not on the MVP track)
- **Mosaic Claude Discord Plugin** — a first-party Mosaic Discord connector that properly
implements the basic Discord functions **and native Discord threads**. Threads let a user
separate conversation topics with the orchestrator (the pattern proven by the Hermes agent).
A major enhancement over the current third-party channel plugin; **not required for the MVP**,
but a committed north-star target. `ASSUMPTION:` ships as a Mosaic-owned plugin so the fleet
controls Discord UX (threads, reactions, attachments, per-thread context) end-to-end.
## Assumptions (veto-able)
- `ASSUMPTION:` first-class runtimes = claude, codex, pi, opencode; a "role" (analyst,

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@@ -1,26 +0,0 @@
# Fleet enhancer role + two-agent floor (#614)
- **Issue:** #614 · **Branch:** `feat/fleet-enhancer-floor` (stacked on #612 `feat/fleet-polish-bundle`)
- **Doctrine:** `docs/fleet/north-star.md` (PR #613) — every fleet = orchestrator + enhancer minimum.
## Changes
- **Presets** (general, coding, research, hybrid): add `enhancer` (claude, `class: enhancer`,
`persistent_persona: true`) as a core always-on agent alongside the orchestrator. minimal/local-canary
unchanged.
- **fleet.ts**: `countEnhancers` helper; init guarantee extended — non-minimal profiles must yield
exactly 1 orchestrator AND >=1 enhancer (hard-fail otherwise); `removeAgentFromRoster` refuses to drop
the sole enhancer (symmetric with the sole-orchestrator guard) so the floor holds at runtime, not just init.
- **Role doc**: `framework/fleet/roles/enhancer.md` — the enhancer mandate (monitor → analyze → plan →
upgrade tools/skills/harness WITH orchestrator → file Mosaic Stack bug reports) + boundaries (does NOT
code or review).
## Verification
- 155 fleet tests green (new: countEnhancers; remove-sole-enhancer guard; remove-allows-when-another;
init two-agent-floor; every-non-minimal-preset-has-enhancer; updated preset rosters). tsc/eslint/
prettier/sanitize clean. TDD on the init guarantee + remove protection.
## Stacking
Built on #612's init-R5 code. PR shows #612 + enhancer until #612 merges; then rebase onto main → clean.

View File

@@ -1,20 +0,0 @@
# Fleet-polish bundle — boot-survival symmetry (#611)
- **Issue:** #611 · **Branch:** `feat/fleet-polish-bundle` · From the Lead's Codex symmetry-gap finding.
## Three fixes
1. **disable-on-remove (BUG, TDD).** `fleet remove` stopped + deleted roster/env/heartbeat but never
`systemctl --user disable mosaic-agent@NAME.service` → a removed-but-enabled unit could resurrect on
reboot pointing at deleted config. Fix: `buildSystemdDisableCommand` + disable in `remove`
(best-effort, gated on !--keep-files).
2. **add-enable.** `fleet add` now enables the new agent's unit for boot-survival (best-effort,
independent of --start) — symmetry with disable-on-remove.
3. **init-R5 guarantee.** `fleet init --write` now FAILS HARD when a non-minimal profile doesn't yield
exactly one orchestrator (was a soft warning). `minimal` (sanctioned no-orchestrator) still allowed.
## Verification
- 4 new tests (disable builder; remove-invokes-disable; add-invokes-enable; init general → exactly 1
orchestrator) + 147 existing fleet tests green (151 total). tsc/eslint/prettier clean.
- TDD on the disable bug per contract.

View File

@@ -15,10 +15,6 @@ agents:
runtime: claude
class: orchestrator
persistent_persona: true
- name: enhancer
runtime: claude
class: enhancer
persistent_persona: true
- name: coder0
runtime: pi
class: implementer

View File

@@ -15,10 +15,6 @@ agents:
runtime: claude
class: orchestrator
persistent_persona: true
- name: enhancer
runtime: claude
class: enhancer
persistent_persona: true
- name: generalist
runtime: pi
class: worker

View File

@@ -15,10 +15,6 @@ agents:
runtime: claude
class: orchestrator
persistent_persona: true
- name: enhancer
runtime: claude
class: enhancer
persistent_persona: true
- name: coder0
runtime: pi
class: implementer

View File

@@ -15,10 +15,6 @@ agents:
runtime: claude
class: orchestrator
persistent_persona: true
- name: enhancer
runtime: claude
class: enhancer
persistent_persona: true
- name: researcher0
runtime: pi
class: researcher

View File

@@ -1,41 +0,0 @@
# Enhancer — fleet role definition
The **enhancer** is one half of the fleet's two-agent floor: every fleet runs, at
minimum, an **orchestrator** and an **enhancer**. The orchestrator drives delivery;
the enhancer makes the fleet _get better at delivering_ over time.
It is a **core, always-on** agent (`class: enhancer`, `persistent_persona: true`),
not an ephemeral per-lane worker.
## Mandate
The enhancer runs the fleet's **continuous-improvement loop**:
1. **Monitor** fleet activity — agents, heartbeats, sessions, throughput, failures.
2. **Analyze** for enhancements and optimizations — friction, gaps, recurring defects,
missing or broken tools, skill/harness shortfalls.
3. **Plan** a remediation: a concrete improvement with rationale and expected effect.
4. **Upgrade fleet capability — with the orchestrator** — tool creation/repair, skills,
harness improvements. The orchestrator owns fleet composition; the enhancer advises and
implements improvements to the _means of production_, not the product.
5. **File upstream bug reports** to Mosaic Stack for real defects, so they flow back to the
framework for proper remediation rather than being patched over locally.
6. **Recommend which agents are needed** — advise the orchestrator on roles to add/remove as
the mission evolves.
## Boundaries
- **Does NOT write product/source code.**
- **Does NOT review code** (that is the code-review / security-review roles).
- **Does NOT perform delivery tasks.**
Improvement and diagnosis only. When the enhancer finds work that requires coding or review,
it files it (bug report / recommendation) and the orchestrator materializes the right worker.
## Why two, not one
The orchestrator alone optimizes for _this_ delivery; the enhancer optimizes for _every future_
delivery — self-healing the fleet's tools, skills, and harnesses, and routing real defects
upstream. Together they are the irreducible core; every other role is added on demand.
> Doctrine: `docs/fleet/north-star.md` (two-agent floor + role library).

View File

@@ -14,13 +14,11 @@ import {
buildEnableLingerCommand,
buildFleetServiceCommand,
buildSystemdEnableCommand,
buildSystemdDisableCommand,
buildSystemdShowCommand,
buildTmuxListPanesCommand,
buildTmuxListSessionsCommand,
classifySendResult,
countOrchestrators,
countEnhancers,
detectDrift,
enableFleetUnits,
FLEET_PROFILES,
@@ -985,129 +983,6 @@ describe('fleet ps — drift detection', () => {
});
});
describe('fleet-polish bundle — boot-survival symmetry', () => {
async function rosterHome(agents: string): Promise<string> {
const home = await tempDir();
await mkdir(join(home, 'fleet'), { recursive: true });
await writeFile(join(home, 'fleet', 'roster.yaml'), agents);
return home;
}
it('buildSystemdDisableCommand returns the systemctl --user disable array', () => {
expect(buildSystemdDisableCommand('mosaic-agent@coder0.service')).toEqual([
'systemctl',
'--user',
'disable',
'mosaic-agent@coder0.service',
]);
});
it('fleet remove DISABLES the unit so a removed agent cannot resurrect on boot', async () => {
const home = await rosterHome(
[
'version: 1',
'transport: tmux',
'agents:',
' - name: orchestrator',
' runtime: pi',
' class: orchestrator',
' - name: coder0',
' runtime: codex',
' class: worker',
].join('\n') + '\n',
);
const calls: string[][] = [];
const runner: CommandRunner = async (command, args) => {
calls.push([command, ...args]);
return { stdout: '', stderr: '', exitCode: 0 };
};
const program = new Command();
program.exitOverride();
registerFleetCommand(program, { runner, mosaicHome: home });
try {
await program.parseAsync(['node', 'mosaic', 'fleet', 'remove', 'coder0']);
expect(calls).toContainEqual([
'systemctl',
'--user',
'disable',
'mosaic-agent@coder0.service',
]);
// stop must still happen too
expect(calls).toContainEqual(['systemctl', '--user', 'stop', 'mosaic-agent@coder0.service']);
} finally {
await rm(home, { recursive: true, force: true });
}
});
it('fleet add ENABLES the new agent unit for boot-survival', async () => {
const home = await rosterHome(
['version: 1', 'transport: tmux', 'agents:', ' - name: coder0', ' runtime: codex'].join(
'\n',
) + '\n',
);
const calls: string[][] = [];
const runner: CommandRunner = async (command, args) => {
calls.push([command, ...args]);
return { stdout: '', stderr: '', exitCode: 0 };
};
const program = new Command();
program.exitOverride();
registerFleetCommand(program, { runner, mosaicHome: home });
try {
await program.parseAsync([
'node',
'mosaic',
'fleet',
'add',
'coder1',
'--runtime',
'codex',
'--class',
'worker',
'--no-start',
]);
expect(calls).toContainEqual([
'systemctl',
'--user',
'enable',
'mosaic-agent@coder1.service',
]);
} finally {
await rm(home, { recursive: true, force: true });
}
});
it('fleet init --write enforces the two-agent floor (1 orchestrator + >=1 enhancer)', async () => {
// The general profile must yield exactly one orchestrator AND at least one
// enhancer; the guarantee is enforced (not just warned). Happy path writes cleanly.
const home = await tempDir();
const program = new Command();
program.exitOverride();
registerFleetCommand(program, {
runner: async () => ({ stdout: '', stderr: '', exitCode: 0 }),
mosaicHome: home,
});
try {
await program.parseAsync([
'node',
'mosaic',
'fleet',
'init',
'--profile',
'general',
'--write',
]);
const written = await readFile(join(home, 'fleet', 'roster.yaml'), 'utf8');
const orchestrators = (written.match(/class:\s*orchestrator/g) ?? []).length;
const enhancers = (written.match(/class:\s*enhancer/g) ?? []).length;
expect(orchestrators).toBe(1);
expect(enhancers).toBeGreaterThanOrEqual(1);
} finally {
await rm(home, { recursive: true, force: true });
}
});
});
describe('fleet install — auto-enable units for boot-survival', () => {
it('buildSystemdEnableCommand and buildEnableLingerCommand return correct command arrays', () => {
expect(buildSystemdEnableCommand('mosaic-tmux-holder.service')).toEqual([
@@ -2313,63 +2188,47 @@ describe('fleet preset rosters', () => {
},
);
it('general preset: orchestrator + enhancer + one generalist worker', async () => {
it('general preset: orchestrator + one generalist worker', async () => {
const roster = await loadFleetRoster(join(examplesDir, 'general.yaml'));
expect(roster.agents.map((a) => a.name)).toEqual(['orchestrator', 'enhancer', 'generalist']);
expect(roster.agents.map((a) => a.name)).toEqual(['orchestrator', 'generalist']);
expect(roster.agents.find((a) => a.name === 'orchestrator')?.runtime).toBe('claude');
expect(roster.agents.find((a) => a.name === 'enhancer')?.className).toBe('enhancer');
expect(roster.agents.find((a) => a.name === 'generalist')?.runtime).toBe('pi');
});
it('coding preset: orchestrator + enhancer + coder0 + coder1 + reviewer', async () => {
it('coding preset: orchestrator + coder0 + coder1 + reviewer', async () => {
const roster = await loadFleetRoster(join(examplesDir, 'coding.yaml'));
expect(roster.agents.map((a) => a.name)).toEqual([
'orchestrator',
'enhancer',
'coder0',
'coder1',
'reviewer',
]);
});
it('research preset: orchestrator + enhancer + researcher0 + researcher1 + analyst', async () => {
it('research preset: orchestrator + researcher0 + researcher1 + analyst', async () => {
const roster = await loadFleetRoster(join(examplesDir, 'research.yaml'));
expect(roster.agents.map((a) => a.name)).toEqual([
'orchestrator',
'enhancer',
'researcher0',
'researcher1',
'analyst',
]);
});
it('hybrid preset: orchestrator + enhancer + coder0 + researcher0 + reviewer', async () => {
it('hybrid preset: orchestrator + coder0 + researcher0 + reviewer', async () => {
const roster = await loadFleetRoster(join(examplesDir, 'hybrid.yaml'));
expect(roster.agents.map((a) => a.name)).toEqual([
'orchestrator',
'enhancer',
'coder0',
'researcher0',
'reviewer',
]);
});
it('every non-minimal preset carries an enhancer (two-agent floor)', async () => {
for (const preset of ['general', 'coding', 'research', 'hybrid'] as FleetProfile[]) {
const roster = await loadFleetRoster(join(examplesDir, `${preset}.yaml`));
expect(countOrchestrators(roster)).toBe(1);
expect(countEnhancers(roster)).toBeGreaterThanOrEqual(1);
expect(roster.agents.find((a) => a.className === 'enhancer')?.runtime).toBe('claude');
}
});
it('worker agents in new presets use pi runtime with model_hint openai-codex/gpt-5.5:high', async () => {
for (const preset of ['general', 'coding', 'research', 'hybrid'] as FleetProfile[]) {
const roster = await loadFleetRoster(join(examplesDir, `${preset}.yaml`));
// Core agents (orchestrator + enhancer) run claude; only ephemeral workers are pi.
const workers = roster.agents.filter(
(a) => a.className !== 'orchestrator' && a.className !== 'enhancer',
);
const workers = roster.agents.filter((a) => a.name !== 'orchestrator');
for (const worker of workers) {
expect(worker.runtime).toBe('pi');
expect(worker.modelHint).toBe('openai-codex/gpt-5.5:high');
@@ -2511,43 +2370,6 @@ describe('fleet add/remove — pure helpers', () => {
expect(updated.agents.map((a) => a.name)).toEqual(['orchestrator2', 'coder0']);
});
it('countEnhancers counts enhancer-class agents (two-agent floor)', () => {
const roster: FleetRoster = {
...baseRoster,
agents: [
{ name: 'orchestrator', runtime: 'claude', className: 'orchestrator' },
{ name: 'enhancer', runtime: 'claude', className: 'enhancer' },
{ name: 'coder0', runtime: 'codex', className: 'worker' },
],
};
expect(countEnhancers(roster)).toBe(1);
expect(countEnhancers(baseRoster)).toBe(0);
});
it('removeAgentFromRoster throws when removing the sole enhancer (two-agent floor)', () => {
const roster: FleetRoster = {
...baseRoster,
agents: [
{ name: 'orchestrator', runtime: 'claude', className: 'orchestrator' },
{ name: 'enhancer', runtime: 'claude', className: 'enhancer' },
],
};
expect(() => removeAgentFromRoster(roster, 'enhancer')).toThrow('sole enhancer');
});
it('removeAgentFromRoster allows removing an enhancer when another remains', () => {
const roster: FleetRoster = {
...baseRoster,
agents: [
{ name: 'orchestrator', runtime: 'claude', className: 'orchestrator' },
{ name: 'enhancer', runtime: 'claude', className: 'enhancer' },
{ name: 'enhancer2', runtime: 'claude', className: 'enhancer' },
],
};
const updated = removeAgentFromRoster(roster, 'enhancer');
expect(updated.agents.map((a) => a.name)).toEqual(['orchestrator', 'enhancer2']);
});
it('serializeRosterToYaml produces YAML that round-trips through loadFleetRoster', async () => {
const yaml = serializeRosterToYaml(baseRoster);
expect(typeof yaml).toBe('string');

View File

@@ -227,15 +227,6 @@ export function buildSystemdEnableCommand(unit: string): string[] {
return ['systemctl', '--user', 'enable', unit];
}
/**
* Returns the systemctl --user disable command for a given unit.
* Used by `fleet remove` so a removed agent's enabled unit cannot resurrect on
* boot pointing at deleted config (boot-survival symmetry with enable-on-add).
*/
export function buildSystemdDisableCommand(unit: string): string[] {
return ['systemctl', '--user', 'disable', unit];
}
/**
* Returns the loginctl enable-linger command for a given user.
* Linger allows user systemd services to survive logout.
@@ -881,33 +872,20 @@ export function registerFleetCommand(program: Command, deps: FleetCommandDeps =
await mkdir(dirname(destination), { recursive: true });
await writeFile(destination, content);
// Guarantee the two-agent floor: exactly one orchestrator AND at least
// one enhancer for every profile except the sanctioned no-orchestrator
// `minimal` preset. A mismatch means a corrupted/edited preset — fail hard
// rather than write a malformed fleet.
// Validate: exactly one orchestrator required (R5) — friendly summary on success.
const written = await loadFleetRoster(destination);
const orchCount = countOrchestrators(written);
const enhancerCount = countEnhancers(written);
if (profile === 'minimal') {
if (orchCount !== 1) {
process.stderr.write(
`Warning: fleet roster at ${destination} has ${orchCount} orchestrator agent(s) (expected exactly 1).\n`,
);
console.log(
`Initialized ${profile} fleet: ${written.agents.length} agent(s) (no orchestrator). Next: mosaic fleet install`,
);
} else if (orchCount !== 1) {
throw new Error(
`Fleet init failed: the "${profile}" roster has ${orchCount} orchestrator agent(s), ` +
`expected exactly 1 (R5). The preset may be corrupted — re-install the framework.`,
);
} else if (enhancerCount < 1) {
throw new Error(
`Fleet init failed: the "${profile}" roster has no enhancer agent. Every fleet keeps an ` +
`orchestrator + enhancer minimum (two-agent floor). The preset may be corrupted — ` +
`re-install the framework.`,
`Initialized ${profile} fleet: ${written.agents.length} agent(s). Next: mosaic fleet install`,
);
} else {
const workerCount = written.agents.length - 1 - enhancerCount;
const workerCount = written.agents.length - 1;
console.log(
`Initialized ${profile} fleet: 1 orchestrator + ${enhancerCount} enhancer(s) + ` +
`${workerCount} worker(s). Next: mosaic fleet install`,
`Initialized ${profile} fleet: 1 orchestrator + ${workerCount} agent(s). Next: mosaic fleet install`,
);
}
});
@@ -1240,24 +1218,6 @@ export function registerFleetCommand(program: Command, deps: FleetCommandDeps =
console.log(`Added ${name} (${opts.runtime}/${opts.class}) to the fleet.`);
// Enable the unit for boot-survival (non-fatal) — symmetry with
// disable-on-remove. Independent of --start so a queued agent still
// survives a reboot once its unit exists.
try {
const enableResult = await runner(
...splitCommand(buildSystemdEnableCommand(`mosaic-agent@${name}.service`)),
);
if (enableResult.exitCode !== 0) {
process.stderr.write(
`Warning: could not enable mosaic-agent@${name}.service: ${enableResult.stderr || enableResult.stdout || 'non-zero exit'}\n`,
);
}
} catch (err) {
process.stderr.write(
`Warning: enable command failed for ${name}: ${err instanceof Error ? err.message : String(err)}\n`,
);
}
if (opts.start !== false) {
await runChecked(runner, buildFleetServiceCommand('start', name));
console.log(`Started mosaic-agent@${name}.service.`);
@@ -1294,26 +1254,6 @@ export function registerFleetCommand(program: Command, deps: FleetCommandDeps =
);
}
// Disable the unit (non-fatal) so an enabled instance cannot resurrect on
// boot pointing at the now-deleted config — boot-survival symmetry with
// enable-on-add. Skipped only when --keep-files keeps the config in place.
if (!opts.keepFiles) {
try {
const disableResult = await runner(
...splitCommand(buildSystemdDisableCommand(`mosaic-agent@${name}.service`)),
);
if (disableResult.exitCode !== 0) {
process.stderr.write(
`Warning: could not disable mosaic-agent@${name}.service: ${disableResult.stderr || disableResult.stdout || 'non-zero exit'}\n`,
);
}
} catch (err) {
process.stderr.write(
`Warning: disable command failed for ${name}: ${err instanceof Error ? err.message : String(err)}\n`,
);
}
}
// Write updated roster
await writeFile(rosterPath, serializeRosterToYaml(updatedRoster));
@@ -1954,15 +1894,6 @@ export function countOrchestrators(roster: FleetRoster): number {
return roster.agents.filter((a) => a.className === 'orchestrator').length;
}
/**
* Count enhancer agents in a parsed roster. The two-agent floor (north-star)
* requires every non-minimal fleet to carry at least one enhancer alongside the
* sole orchestrator.
*/
export function countEnhancers(roster: FleetRoster): number {
return roster.agents.filter((a) => a.className === 'enhancer').length;
}
/** Valid runtime identifiers for fleet agents. */
export const VALID_FLEET_RUNTIMES: readonly string[] = [
'pi',
@@ -2005,15 +1936,6 @@ export function removeAgentFromRoster(roster: FleetRoster, name: string): FleetR
`Cannot remove agent "${name}": it is the sole orchestrator. Add another orchestrator first (R5).`,
);
}
// Two-agent floor: never drop the last enhancer (the continuous-improvement
// loop). Symmetric with the sole-orchestrator guard.
const remainingEnhancerCount = remaining.filter((a) => a.className === 'enhancer').length;
if (remainingEnhancerCount === 0 && agent.className === 'enhancer') {
throw new Error(
`Cannot remove agent "${name}": it is the sole enhancer. Every fleet keeps at least one ` +
`enhancer (two-agent floor). Add another enhancer first.`,
);
}
return {
...roster,
agents: remaining,