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    Lumenbase

    Codex

    Core Workflow

    Use Codex playbooks to standardize strategy and guide Lumo recommendations.

    By Sebastian StreiffertPublished Jan 10, 2026Updated May 29, 20268 min read

    What Is Codex?

    Codex is Lumenbase's playbook layer for repeatable AI-guided execution. It lets teams define strategic context and operational patterns that Lumo uses for Today recommendations, task execution, and team alignment.

    Instead of ad-hoc instructions, Codex centralizes how your team wants actions framed, prioritized, and executed. The same contact can receive different recommendations depending on which Codex is applied to the list they belong to.

    Codex improves consistency: similar situations produce similarly high-quality next actions.

    How to Create a Codex

    Open Lists → Codexes and click "Create Codex." A dialog opens with three creation modes:

    Create Codex dialog: choose your creation mode
    Create Codex

    Choose how to create your Codex.

    Or start from a template

    • 1
      Sandbox: Write the full instructions yourself. Best for teams who know exactly what they want.
    • 2
      Co-create with Lumo: Answer guided questions; AI structures your answers into Codex instructions.
    • 3
      Templates: Start from pre-built patterns (nurture, re-activation, champion expansion) and customize.

    Creation modes

    ModeHow it worksBest for
    SandboxYou write the full instructions using the standard section structure (Situation, Objective, Prioritization, Cadence, etc.)Teams who know exactly what they want; full control over wording
    Co-create with LumoAnswer questions one by one. Lumo structures your answers into Codex instructions. You can edit the result.Quick setup; good starting point that you refine later
    TemplateStart from a pre-built template (e.g. Network Warmth Loop, Dormant Re-activation). Customize to fit.Common patterns like nurture, re-activation, champion expansion

    Codex card (after creation)

    Once created, each Codex appears as a card on the Codex page. Link it to Lists so contacts on those lists receive recommendations shaped by that Codex.

    Codex card in the list
    Enterprise Nurture

    Focus on enterprise expansion. Champion-led deals. Tone: consultative. Qualify on budget cycle...

    2 Lists
     Updated 2 days ago
    • 1
      Codex name: Click to open and edit. Use the menu for duplicate, delete.
    • 2
      AI context snippet: Preview of the strategic context the AI uses for recommendations.
    • 3
      Linked lists: Contacts on these lists receive recommendations shaped by this Codex.
    • 4
      Last updated: Review and iterate the Codex as your strategy evolves.

    Linking Codex to a List

    Open a List, go to its settings or details, and select a Codex from the dropdown. All contacts on that list will use that Codex's context when appearing on the Today page. A list can only have one Codex linked. See List Segmentation for list setup.

    LinkedIn activity monitoring

    Open a Codex and go to Settings. Under LinkedIn, Activity monitoring is a switch: it is the control that turns LinkedIn activity syncing on or off for that Codex. When it is on, the Lumenbase browser extension actively polls LinkedIn for new posts, articles, and shares from contacts on lists linked to this Codex: that membership is the monitored set, anchored in how the Codex is wired to lists (not a separate ad-hoc picker).

    The feature is meant for focused cohorts: keep linked lists to a smaller number of contacts when you care about timely signals. The workspace shows how many contacts are monitored in aggregate across all Codexes with monitoring enabled (with a 200 contact guideline before polling quality may spread thin); use multiple Codexes or disable monitoring on lower-priority playbooks if you approach that ceiling.

    See LinkedIn Monitor, My Connections, and Added Profiles for where those signals surface (Labs, dashboard, Today).

    Example Codex A vs B: Same Contact, Different Recommendations

    The same contact can get very different recommendations depending on the Codex linked to their list. Here are two contrasting examples for a contact named Sarah Chen (enterprise deal in negotiation, 5 days since last contact).

    Codex A: Aggressive Close

    Codex A: Aggressive Close
    == SITUATION ==
Enterprise deals in late-stage negotiation. Champion identified, contract in review.

== OBJECTIVE ==
Close the deal. Move to signature as fast as possible.

== ENGAGEMENT POSTURE & STYLE ==
Direct and urgent. Push for next steps. Include clear CTAs and deadlines.

== CONSTRAINTS ==
Do not suggest long nurturing sequences. Avoid soft check-ins.
    Today recommendation with Codex A
    SC
    Sarah Chen
    Enterprise License · $45k

    Write email

    Send a deadline-driven follow-up: "Can we get the signed contract by Friday? I can expedite onboarding if we close this week."

    • 1
      Amber accent: Message draft available. Aggressive Codex suggests deadline-driven follow-up.
    • 2
      Recommendation tone: Direct, urgent. "Can we get the signed contract by Friday?"

    Codex B: Consultative Nurture

    Codex B: Consultative Nurture
    == SITUATION ==
Enterprise prospects with champions. Deals may have long decision cycles.

== OBJECTIVE ==
Build trust and support the champion internally. Avoid pressure.

== ENGAGEMENT POSTURE & STYLE ==
Consultative, peer-to-peer. Offer value (case studies, implementation support). No hard deadlines.

== CONSTRAINTS ==
Never push for signature or create artificial urgency. Do not use aggressive CTAs.
    Today recommendation with Codex B
    SC
    Sarah Chen
    Enterprise License · $45k

    Share a relevant case study or implementation one-pager. Ask if the champion needs any internal-selling support before their next stakeholder meeting.

    • 1
      Blue accent: General action (no draft). Consultative Codex favors supporting the champion.
    • 2
      Recommendation tone: Consultative, no pressure. Case study, one-pager, internal-selling support.

    Same contact, same deal data. Codex A pushes for a close; Codex B focuses on supporting the champion. Choose the Codex that matches how you want to work that segment.

    Where Codex Is Used

    AreaCodex roleOutcome
    TodayStrategic context for each contact on Codex-linked listsRecommendations and message drafts aligned to the playbook
    TasksRepeatable sequences and operating patternsFaster, less variable follow-through
    Team alignmentStandardizes language and intent across usersLess drift in quality and prioritization
    LinkedIn Monitor (when enabled)Activity monitoring in Codex settings polls LinkedIn for posts and shares from contacts on that Codex's listsPrioritized social signals without monitoring your entire network

    Building Effective Codex Entries

    What to include

    • Target outcomes (what success looks like).
    • Qualification and prioritization heuristics.
    • Tone and communication constraints for outreach (via your preferred outreach platform).
    • Common objection handling and escalation boundaries.
    • Signals that should trigger immediate action.

    What to avoid

    • Vague goals without concrete action criteria.
    • Conflicting instructions across multiple Codex entries.
    • Outdated strategic assumptions left unreviewed.

    Codex Workflow

    1. Create a Codex (Sandbox, Co-create, or Template).
    2. Define concise context and actionable guardrails.
    3. Link the Codex to Lists (or Lead columns) where it applies.
    4. Contacts on those lists appear on Today with shaped recommendations.
    5. Review recommendation quality and iterate the Codex wording as needed.
    Pair Codex with Tasks, Leads, and Today to close the strategy-to-execution gap.

    Quick Reference

    Open Codex: Lists → Codexes
    Create entry: Codex page → New Codex
    Link to List: List settings → select Codex
    LinkedIn monitoring: Codex → Settings → LinkedIn → Activity monitoring
    Use in Today: Lists with Codex → Today page
    Related: Today, List Segmentation, Tasks, Leads

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