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Phase 17

Knowledge Bases

~3 min read

Concept & How It Works

    Why Does It Exist?

    Agents are only as good as the knowledge they can access. Without a governed KB, teams duplicate content, index stale wikis, and agents mix conflicting answers from random Slack threads.

    Real-World Analogy

    Wikipedia with an editorial board, access badges, and a 'last verified' sticker on every article — not a pile of sticky notes in everyone's desk drawer.
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    Visual Workflows

    What is Knowledge Bases?

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    Example

    Scenario

    Engineering publishes a new incident runbook. The KB webhook triggers re-chunking and re-embedding; within 10 minutes the on-call agent retrieves the updated steps instead of last quarter's playbook.

    Solution

    In Enterprise AI, apply Knowledge Bases to this scenario: Engineering publishes a new incident runbook. Identify the inputs, run the technique, validate the output, and note one thing you would monitor in production.

    Practice Task

    Do this before moving to the next module — reading alone is not enough.

    Open the Code Walkthrough below and run it locally. Change one parameter related to Knowledge Bases (e.g. model, temperature, top_k, or tool name), observe the difference in output, and write 2–3 sentences explaining what changed.

    Code Walkthrough

    Highlighted lines show where Knowledge Bases happens in the code.

    Knowledge Bases
    1// KB publish webhook handler2app.post("/kb/publish", async (req) => {3  const doc = await kb.upsert({4    id: req.body.id,5    title: req.body.title,6    body: req.body.markdown,7    owner: req.body.owner,8    classification: req.body.classification,9    version: req.body.version,10    published_at: new Date(),11  });12  await ingestionQueue.enqueue({ docId: doc.id, action: "reindex" });13  await audit.log({ event: "kb.publish", docId: doc.id, actor: req.user.id });14});

    Commands to Remember

    Commands to Remember

    • pip install langchain chromadb # enterprise RAG stack
    • pip install python-jose # JWT identity tokens

    Common Mistakes

    • Treating Knowledge Bases as a black box without evaluation
    • Ignoring cost and latency in production
    • Skipping error handling for knowledge bases

    Cheat Sheet

    Quick recap — the most important points from this module.

    Cheat Sheet

    quick ref
    • Knowledge Bases
    • Canonical Document
    • Incremental Sync
    • Lifecycle State