gurucloud-kb 0.1.9

Python SDK for the GuruCloud Knowledge Bank API

GuruCloud KB SDK

Python SDK for the GuruCloud Knowledge Bank API — a multi-dimensional, semantic vector store. Every Knowledge Bank has a configurable dimension schema: each dimension is its own embedding space, and search is a weighted combination across the dimensions you choose.

pip install gurucloud-kb

Authenticate

from gurucloud_kb import GuruCloudClient

client = GuruCloudClient(api_key="kb_your_api_key")   # keys start with "kb_"

API keys carry scopes: read (search, list), write (add/update entries), admin (create/delete KBs, change the schema).

---

Mental model (read this first)

A Knowledge Bank is not a single vector index. It is a set of named dimensions, each of which is embedded separately:

Concept	What it is
Dimension	A named field that gets its own embedding(s). The default KB has content, useful_for, relevant_systems, relevant_tasks.
single dimension	One vector per entry (e.g. content).
multi dimension	A list of values, each embedded; matches ANY value (e.g. relevant_systems).
text_only dimension	Stored (in entry metadata) but NOT embedded; non-semantic exact-match filtering of IDs / tags / enums. Searching it applies an exact-match filter rather than ranking.
Weighted search	You query several dimensions at once; each has a weight; scores combine into one ranked result.
metadata_filters	Exact (non-semantic) JSONB filtering layered on top of the semantic ranking.

You can use the 4 default dimensions, or define your own semantic dimensions when you create a KB.

---

Create a KB with custom semantic dimensions

Pass a dimension_schema to create_kb. Each dimension becomes its own embedding space and is automatically searchable.

kb = client.create_kb(
    name="support-kb",
    description="Resolved support tickets",
    dimension_schema={
        "version": 1,
        "combination_mode": "weighted_sum",
        "dimensions": [
            # one vector per entry, required
            {"name": "symptom", "display_name": "Symptom",
             "description": "What the user reported",
             "dimension_type": "single", "required": True, "default_weight": 1.5},

            {"name": "resolution", "display_name": "Resolution",
             "description": "How it was fixed",
             "dimension_type": "single", "required": True},

            # a list field — each value embedded, matches ANY
            {"name": "products", "display_name": "Products",
             "description": "Affected products",
             "dimension_type": "multi", "max_items": 8},

            # stored but NOT embedded — exact-match filter only (e.g. region code)
            {"name": "region", "display_name": "Region",
             "description": "Data-center region (exact match)",
             "dimension_type": "text_only"},
        ],
    },
)
print(kb.id, kb.name)

If you omit dimension_schema, you get the default 4-dimension schema (content, useful_for, relevant_systems, relevant_tasks).

Embedding model. Every dimension in a KB shares one model (text-embedding-3-small, 1536-dim). The model is not currently selectable through the SDK.

Update the name / description (and the agent-facing instructions)

A KB's description is its canonical "what is this / when should I use it" text. It is not just metadata: it's the text agents receive at the MCP handshake as initialize.instructions, and it's the description field returned by get_mcp_server_definition(). Update it in place — there is no separate setter for those agent-facing surfaces, and they refresh from this one field:

kb.update(description="Resolved support tickets. Query before triage; cite ticket IDs.")
kb.update(name="Support KB", description="...")     # both at once (write scope)
client.update_kb(kb.id, description="...")          # equivalent, by id

After an update, the next agent that connects sees the new text as initialize.instructions, and get_mcp_server_definition()["description"] returns it too. Pass description="" to clear it (the server-def description then falls back to the KB name).

REST API. PATCH /api/v1/kb/banks/{id} with {"description": "..."}.

Accumulate-only KBs (never overwrite or delete)

By default, deduplication may merge a near-duplicate into an existing entry (update) or merge-and-replace conflicting entries (conflict). For an observation / "connect-the-dots" KB — where every signal should be kept and a later rollup should coexist with the entries it summarizes — set allow_updates=False:

kb = client.create_kb("signals", allow_updates=False)   # at creation
kb.set_allow_updates(False)                              # or toggle later (write scope)

With allow_updates=False the dedup LLM's update/conflict verdicts are downgraded to new, so existing entries are never overwritten or deleted — the KB only accumulates. Exact duplicates are still skipped (redundant). The flag lives on the KB's schema (round-trips through get_schema()/update_schema()); the default is True, which preserves the historical merge behavior.

REST API. The same control is available without the SDK: POST /api/v1/kb/banks accepts "allow_updates": false, and PATCH /api/v1/kb/banks/{id} with {"allow_updates": false} toggles it.

Choose which fields the MCP tools return (response_fields)

By default a KB's MCP tools (query_knowledge_bank, narrate) return only id + content per result, to keep agent context lean. Opt a KB into returning extra keys on every result:

kb = client.create_kb("curated", response_fields=["useful_for", "source"])  # at creation
kb.set_response_fields(["useful_for", "relevant_systems", "source"])         # or set later (write scope)
kb.set_response_fields(None)                                                 # reset to id + content only

response_fields is additive: id + content are always present and the listed keys are added when an entry carries them. Allowed values are the standard result fields (useful_for, relevant_systems, relevant_tasks, relevant_file_paths, source, metadata, combined_score, created_at, updated_at) plus the KB's own dimension names; unknown keys are rejected. The list lives on the KB's schema and only affects the MCP response shape — the REST API and stored data always carry every field.

REST API. POST /api/v1/kb/banks accepts "mcp_response_fields": [...], and PATCH /api/v1/kb/banks/{id} with {"mcp_response_fields": [...]} (or null to reset) toggles it.

Evolve the schema later (admin scope)

kb.get_schema()                       # current KBDimensionSchema
kb.validate_schema(new_schema)        # returns warnings, applies nothing
kb.update_schema(new_schema)          # replace the whole schema
kb.add_dimension({"name": "severity_notes", "display_name": "Severity",
                  "description": "Severity context", "dimension_type": "single"})
kb.remove_dimension("severity_notes")

---

Add entries

Provide a value for each dimension. single dimensions take a string; multi dimensions take a list of strings.

kb.add_entry({
    "dimensions": {
        "symptom": "Login loops back to the sign-in page after SSO",
        "resolution": "Cleared the stale SAML session cookie on the gateway",
        "products": ["web app", "mobile app"],
        "region": "us-east-1",   # text_only — stored in metadata, exact-match only
    },
    "metadata": {"status": "resolved", "severity": "high"},
})

# Batch ingest (deduplicates by default)
kb.ingest([{ "dimensions": {...} }, { "dimensions": {...} }])

add_entry / ingest are synchronous — they return the stored entry (or raise on failure), so the call itself tells you the write landed. This differs from the agent-facing MCP report_learning tool, which queues the write (it becomes searchable shortly after). An optional check_learning_status tool to confirm a queued write landed is configurable per deployment (off by default).

---

Search

Simple — one string against content

results = kb.search("how does authentication work?")

Multi-dimensional weighted search

Map each dimension to a query. The required per-dimension key is query_text, and weight scales that dimension's contribution. Scores are combined per combination_mode.

results = kb.search({
    "dimensions": {
        "symptom":  {"query_text": "login loops after SSO", "weight": 2.0},
        "products": {"query_text": "mobile app",            "weight": 0.5},
    },
    "combination_mode": "weighted_sum",
    "metadata_filters": {"status": "resolved"},   # exact, non-semantic
    "k": 10,
    "threshold": 0.35,
})

for r in results:
    print(r["combined_score"], r["dimensions"] if "dimensions" in r else r)

Per-dimension you can also override aggregation, top_k, and min_threshold:

"products": {"query_text": "mobile", "weight": 1.0,
             "aggregation": "max", "min_threshold": 0.2}

Exact-match filtering with text_only dimensions

A text_only dimension is matched exactly, not ranked. Pass it alongside at least one semantic (single/multi) dimension; its query_text folds into an exact-match filter (equivalent to a metadata_filters entry) and never contributes to the score:

results = kb.search({
    "dimensions": {
        "symptom": {"query_text": "login loops after SSO"},
        "region":  {"query_text": "us-east-1"},   # text_only → exact match
    },
})

A search containing only text_only dimensions is rejected (there is nothing to rank) — add a semantic (single/multi) dimension. The same is true of metadata_filters (below): it is an exact post-filter layered on the ranking, so every search still needs at least one semantic dimension. A text_only dimension defined with searchable=False is stored but cannot be used as a search filter.

Exact filtering with metadata_filters

metadata_filters is an exact (non-semantic) JSONB-containment filter applied on top of the semantic ranking — only entries whose metadata contains all the given key/values survive. Pair it with at least one semantic dimension:

results = kb.search({
    "dimensions": {"observation": {"query_text": "late delivery"}},
    "metadata_filters": {"order_id": "SO-1234", "type": "quality_issue"},
})

It narrows the ranked results; it does not rank on its own. To gather every entry for a key regardless of relevance, widen k and pass a broad semantic query alongside the filter.

Filter by time

Restrict results to a time window with a hard filter on entry timestamps (UTC) — it removes out-of-window entries without affecting the ranking. Bounds accept an ISO-8601 string or a datetime. For a string query they're keyword args:

from datetime import datetime, timedelta, timezone

# Only knowledge created in the last 30 days
recent = kb.search(
    "deployment pipeline",
    created_after=datetime.now(timezone.utc) - timedelta(days=30),
)

For a dict query, set the same keys inline:

results = kb.search({
    "dimensions": {"content": {"query_text": "deployment pipeline"}},
    "created_after": "2026-05-01T00:00:00Z",
    "created_before": "2026-06-01",          # bare date == 00:00:00Z
    "k": 10,
})

Available bounds: created_after, created_before, updated_after, updated_before. Each result includes created_at / updated_at so you can verify the window and sort by recency client-side.

Search request reference

Field	Type	Notes
dimensions	{name: {query_text, weight, aggregation?, top_k?, min_threshold?}}	At least one searchable dimension required. A text_only dimension here folds into an exact-match filter (and needs a single/multi dimension alongside it).
combination_mode	weighted_sum | weighted_product | max | min | custom	How dimension scores combine.
custom_formula	str	Required when combination_mode="custom"; SQL over <dim>_score.
metadata_filters	dict	Exact JSONB containment, e.g. {"status": "resolved"}.
category_filters	[{tag, max_results, min_score}]	Bucket results by metadata tag.
created_after / created_before	str | datetime	Hard filter on entry creation time (UTC, ISO-8601).
updated_after / updated_before	str | datetime	Hard filter on entry last-modified time (UTC, ISO-8601).
k, threshold	int, float	Result count / minimum combined score.

aggregation (for multi dimensions): max, avg, min, top_k_avg, sum, count.

The SDK also accepts the older spellings query (per dimension) and filters (top level) and rewrites them to query_text / metadata_filters for you — but prefer the canonical names above.

---

Cluster entries

Group a KB's entries by any field. Each field is clustered independently and returned keyed by field, so one call can group "by topic" and "by customer" at once. The engine is chosen per field (method="auto"):

• Embedding dimensions (content, useful_for, …) → vector clustering (KMeans / Agglomerative / HDBSCAN over the stored vectors).
• Anything else (metadata.customer, source, a text_only dimension) → fuzzy string grouping, so near-duplicate values ("Acme Inc" ≈ "Acme, Inc.") merge.

result = kb.cluster(
    fields=["content", "metadata.customer"],
    method="auto",              # vector for content, fuzzy for metadata.customer
    algorithm="auto",           # vector: HDBSCAN when k omitted, else KMeans
    similarity_threshold=0.85,  # fuzzy cutoff (1.0 = exact grouping)
    label=True,                 # opt-in names; all clusters named in ONE batched call
    label_sample_size=5,        # representatives per cluster fed to the namer
)

for field_result in result["results"]:
    print(field_result["field"], field_result["method"], field_result["cluster_count"])
    for group in field_result["clusters"]:
        print("  ", group.get("key") or group.get("keywords"), "→", group["size"])

Cluster only the results of a search by passing the same shape as kb.search:

result = kb.cluster(
    fields=["content"],
    search={"dimensions": {"content": {"query_text": "billing error"}}, "k": 500},
)

Cluster request reference

Field	Type	Notes
fields	[str]	Fields to cluster (default ["content"]). metadata.<key> reads a metadata value; a bare name resolves to a dimension or metadata key.
method	auto | vector | fuzzy	auto picks by field type (single embedding dim → vector, else fuzzy).
algorithm	auto | kmeans | agglomerative | hdbscan	Vector only. kmeans/agglomerative require k.
k	int	Cluster count for kmeans/agglomerative. Omit for auto/hdbscan.
min_cluster_size	int	HDBSCAN minimum cluster size (default 5).
metric	cosine | euclidean	Vector distance (default cosine).
similarity_threshold	float	Fuzzy cutoff 0..1 (default 0.85; 1.0 = exact).
search	SearchRequest	Optional — cluster only matching entries.
scope_limit	int	Max entries clustered when no search (default 2000).
include_members / max_members_per_cluster	bool / int	Per-cluster member output.
label	bool	Generate a short label per cluster (off by default — free & deterministic). When on, all clusters of a field are named in a single batched LLM call (fast, mutually distinct), not one call per cluster.
label_sample_size	int	When label=True, representatives per cluster fed to the namer — nearest-centroid for vector, most-distinct values for fuzzy (default 5).

Each result is a FieldClusterResult with clusters: [ClusterGroup]; vector results carry a silhouette_score, fuzzy results carry each group's key and distinct values.

---

Use the KB as an MCP server (agent injection)

mcp_def = kb.get_mcp_server_definition()
agent_config = {
    "mcpServers": {
        mcp_def["server_name"]: {
            "type": mcp_def["type"],
            "url": mcp_def["url"],
            "headers": {"Authorization": f"Bearer {api_key}"},
        }
    }
}
# Or mint a dedicated never-expiring token (admin scope):
pat = kb.generate_pat(token_name="My Agent")

The MCP tools (query_knowledge_bank, report_learning) are generated from your schema — every searchable dimension becomes a <dimension>_query parameter automatically.

---

Async

The async client mirrors the sync API exactly — every method is awaitable.

from gurucloud_kb import AsyncGuruCloudClient

async with AsyncGuruCloudClient(api_key="kb_...") as client:
    kb = await client.get_kb("your-kb-uuid")
    results = await kb.search({
        "dimensions": {"content": {"query_text": "JWT", "weight": 1.0}},
        "k": 5,
    })

---

Typed contracts

All request/response shapes are exported as TypedDicts / Literals for editor + agent autocompletion:

from gurucloud_kb import (
    DimensionConfig, DimensionSchema, DimensionType,
    DimensionQuery, SearchRequest, CombinationMode, Aggregation,
    CategoryFilter, EntryInput, EntryResult, KBInfo,
)

---

Changelog

0.1.9

• kb.cluster() / await kb.cluster() omit fields when not given — the server now picks the KB's primary embedding dimension (first required SINGLE dimension), so custom-schema KBs no longer degrade to fuzzy grouping over a raw content column that has no embedding. Server-side improvements shipped alongside: MULTI dimensions (tags, products, ...) are now clusterable (entries grouped by their values), degenerate auto-HDBSCAN results fall back to KMeans with a heuristic k, ID-like values are grouped exactly with dominant-value labels, and each field result carries an optional note plus label_usage token accounting.

0.1.8

• Removed DimensionConfig.show_in_results — the deprecated, inert per-dimension flag (deprecated in 0.1.3) has been removed. It never controlled MCP output; use response_fields (mcp_response_fields) to choose the keys the MCP tools return. Stored schemas that still carry the key keep parsing — the unknown field is ignored.

0.1.7

• label_sample_size on kb.cluster() / await kb.cluster() — when label=True, how many representative entries per cluster are sent to the labeler (default 5). Server-side, cluster naming became one batched LLM call per field instead of one call per cluster, so labeled clustering no longer slows linearly with cluster count and names come out mutually distinct.

0.1.6

• kb.update() / await kb.update() — update a KB's name and/or description in place (write scope; also client.update_kb(kb_id, ...)). The description drives both the agent-facing initialize.instructions and the description returned by get_mcp_server_definition() (see Update the name / description above) — there is no separate setter for those surfaces.
• Corrected stale docstrings that claimed KB-management methods "return a token".

0.1.5

• Restore the py.typed marker (PEP 561) so type checkers pick up the SDK's inline types. It was inadvertently dropped in 0.1.2–0.1.4; the Typing :: Typed classifier had been advertised without it. No API changes.

0.1.4

• kb.cluster() / await kb.cluster() — group a KB's entries by any field. Embedding dimensions cluster by vector similarity (KMeans / Agglomerative / HDBSCAN); metadata/text fields cluster by fuzzy string match. Cluster the whole KB or a search result set; results are returned keyed per field. New typed contracts: ClusteringResult, FieldClusterResult, ClusterGroup, ClusterMember, ClusterScope, ClusterMethod, ClusterAlgorithm. Backed by POST /api/v1/kb/banks/{id}/cluster.

0.1.3

• response_fields / kb.set_response_fields() — choose which extra keys a KB's MCP tools return beyond id + content (see Choose which fields the MCP tools return above). Set on create_kb(...) or later via kb.set_response_fields([...]); needs write scope. Backed by mcp_response_fields on DimensionSchema.
• allow_updates / kb.set_allow_updates() — accumulate-only KBs (dedup never merges/overwrites).
• Deprecated DimensionConfig.show_in_results — this per-dimension flag is not enforced and never controlled MCP output; use response_fields (mcp_response_fields) instead. The field is kept only for backward compatibility of stored schemas.