Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/knuckles-team/documentdb-mcp/documentdb-document-crudnpx skills add Knuckles-Team/documentdb-mcp --skill documentdb-document-crudgit clone --depth 1 https://github.com/Knuckles-Team/documentdb-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/knuckles-team/documentdb-mcp/documentdb-document-crud)<a href="https://agentmods.dev/skills/knuckles-team/documentdb-mcp/documentdb-document-crud"><img src="https://agentmods.dev/badge/skills/knuckles-team/documentdb-mcp/documentdb-document-crud.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00126 | $0.01272 |
| Opus 5 | $0.00063 | $0.00636 |
| Sonnet 5 | $0.00025 | $0.00254 |
| Haiku 4.5 | $0.00013 | $0.00127 |
Grade A, and why
documentdb-document-crud scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DocumentDB Document CRUD
Row-level document operations against a specific database_name + collection_name
using MongoDB filter/update semantics.
When to use
- Insert one or many documents.
- Query:
find_one/findwith a filter, plussort,skip,limit. - Mutate:
update_one/update_many(with update operators),replace_one. - Remove:
delete_one/delete_many;count_documentsfor cardinality. - Atomic read-modify-write:
find_one_and_update/find_one_and_replace/find_one_and_delete.
When NOT to use
- Creating/dropping/renaming the collection or database, or user management →
documentdb-collection-admin. distinctvalues or$group/$matchaggregation pipelines →documentdb-aggregation-analytics.- Bulk-loading a collection into the knowledge graph → the native
documentdb_ingest_documentstool (see Related).
Prerequisites & environment
Connect via the mcp-client skill against the documentdb-mcp MCP server.
| Variable | Required | Notes |
|---|---|---|
MONGODB_URI |
one of | Full connection URI (wins over host/port) |
MONGODB_HOST |
one of | Host when no URI (default localhost) |
MONGODB_PORT |
optional | Port when no URI (default 27017) |
MCP_TOOL_MODE (condensed|verbose|both) selects the condensed action-routed
surface vs. the one-to-one verbose tools.
Tools & actions
| Condensed tool | Actions |
|---|---|
documentdb_crud |
insert_one, insert_many, find_one, find, replace_one, update_one, update_many, delete_one, delete_many, count_documents, find_one_and_update, find_one_and_replace, find_one_and_delete |
Key parameters
database_name/collection_name— required for every action.document/documents— the payload(s) for inserts.filter— a MongoDB query document (e.g.{"status":"active"}).update— a MongoDB update document with operators (e.g.{"$set":{"seen":true}}).replacement— full replacement document (no operators) for replace/find-and-replace.limit/skip/sort—findpaging/ordering (sortis a list of[field, dir]).return_document—"before"(default) or"after"for find-and-modify.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 4d ago First seen · 103 lines · 126 tokens per session scan A f4009e2d6ea3
documentdb-document-crud is a skill published in the GitHub repository Knuckles-Team/documentdb-mcp (2 stars, last pushed 6d ago), licensed MIT. It adds 126 tokens to every session and 1,272 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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