Persona Library — fleet role index
This is the discoverable index of the fleet's persona role library. Mosaic is
a general-purpose multi-agent system: the operator declares a system type
(software delivery, personal assistant, research, business/operations, marketing,
…) and the orchestrator provisions a matching roster by drawing personas from this
library.
Each row points at a *.md role contract in this directory. The two-agent floor
(orchestrator + enhancer) is always present; every other persona is added
on demand. Engineering personas have no explicit domain: marker (they are the
implicit engineering domain); cross-domain personas carry a domain: key in
their intro so tooling can group them.
This file is an index only — no code imports it. To add a persona, drop a new
*.md next to the others (mirroring the existing structure) and add a row here.
engineering
| Persona |
Purpose |
| board |
Multi-lens deliberation panel; owns the mission's direction, not its execution |
| planner |
Turns ratified objectives into a phased FR plan wired into a depends_on DAG |
| decomposition |
Splits FRs into one-PR-each cards wired with depends_on edges |
| code |
Primary executor — one card, one branch, one PR to green CI |
| review |
Correctness reviewer — judges an open PR on correctness, scope, and coverage |
| security-review |
Second line of review — secrets, auth, and forbidden-path safety |
| site-tester |
Runtime verifier — runs the change and checks behavior vs. acceptance criteria |
| documentation |
Prose maintainer — keeps human-facing docs and projections in sync |
| merge-gate |
Sole approver and auto-merger — the single chokepoint every PR passes through |
| rebase |
Freshness keeper — restores stale / unmergeable PR branches or escalates |
| operator |
Escalation and control surface — owns exceptions and the fleet pause switch |
| session-review |
Post-task retrospective — turns finished work into improvement signals |
| enhancer |
Continuous-improvement loop — upgrades the fleet's tools, skills, and harness |
executive
| Persona |
Purpose |
| ceo |
Direction-setter and final arbiter — owns the mission's why and whether |
| coo |
Runs execution and operations — turns strategy into a running machine |
| cfo |
Owns financial truth — budgets, runway, and unit economics |
| cto |
Owns technical strategy and architecture direction at the executive level |
| chief-of-staff |
Force-multiplier for the exec seat — drives priorities, unblocks, runs cadence |
product
| Persona |
Purpose |
| product-manager |
Owns the roadmap and problem definition — decides what to build and why |
| ux-designer |
Owns interaction and flow design — the usability of the experience |
| user-researcher |
Owns generative and evaluative research — turns user evidence into insight |
marketing
| Persona |
Purpose |
| marketing-lead |
Owns marketing strategy, channel mix, and budget; runs the roster |
| content-strategist |
Owns the content plan, editorial calendar, and content-to-funnel mapping |
| copywriter |
Writes the actual copy — ads, landing pages, and emails |
| seo-specialist |
Owns organic search — keyword strategy, on-page/technical SEO, SERPs |
| social-media-manager |
Owns social presence, posting cadence, and community engagement |
| brand-strategist |
Owns brand positioning, voice, and identity guardrails |
| growth-marketer |
Owns funnel experiments — acquisition, activation, and retention loops |
sales
| Persona |
Purpose |
| sales-lead |
Owns sales strategy, pipeline targets, and the sales roster |
| account-executive |
Owns deals from qualified opportunity through to close |
| sales-development-rep |
Owns top-of-funnel qualification and booking meetings |
operations
| Persona |
Purpose |
| operations-manager |
Owns running processes, throughput, and operational SLAs day-to-day |
| project-manager |
Owns scope, schedule, and delivery of a defined project |
| business-analyst |
Owns requirements gathering, process mapping, and turning needs to specs |
| hr-generalist |
Owns people operations — onboarding, policy, and employee relations |
| recruiter |
Owns sourcing, screening, and filling open roles |
| legal-counsel |
Owns contracts, compliance, and legal-risk review |
| finance-analyst |
Owns financial modeling, reporting, and decision-support analysis |
research
| Persona |
Purpose |
| lead-researcher |
Owns the research agenda — decomposes questions and synthesizes findings |
| researcher |
Executes a single research question — gathers, extracts, drafts findings |
| data-analyst |
Owns descriptive analysis, dashboards, and "what happened" from data |
| data-scientist |
Owns modeling, statistical inference, and predictive/experimental analysis |
| market-analyst |
Owns market sizing, competitive landscape, and trend analysis |
assistant
| Persona |
Purpose |
| personal-assistant |
Owns the principal's personal logistics, reminders, and errands |
| executive-assistant |
Owns an executive's calendar, travel, meeting prep, and gatekeeping |
| scheduler |
Owns conflict-free meeting booking across multiple parties |
| inbox-manager |
Owns triage, drafting, and routing of incoming messages |
customer
| Persona |
Purpose |
| customer-success-manager |
Owns post-sale adoption, retention, and renewal for accounts |
| support-agent |
Owns resolving individual customer issues and tickets to closure |
creative
| Persona |
Purpose |
| graphic-designer |
Owns visual assets — layouts and graphics executed to brand spec |
| video-producer |
Owns video from concept through shoot/assembly to delivery |
| editor |
Refines and polishes existing content for clarity and consistency |
