nextcloud-mcp AGENTS.md

Instructions for an AI tool server that connects to Nextcloud, a self-hosted service for files, users, groups, and sharing. They describe administration, file access, sharing, and permission boundaries.

In plain words
What is it for?
Use them when configuring or operating Nextcloud through tools, including managing users, maintaining the server, handling files, and creating shared links.
Why use it?
They give an agent a clear map of available Nextcloud operations and help prevent it from using tools outside its assigned scope.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/tadmstr/nextcloud-mcp/agents-md
Clone the repo
git clone --depth 1 https://github.com/TadMSTR/nextcloud-mcp

Made for: Codex, OpenCode.

Per session 559 This file is loaded in full into every session.
When invoked 559 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00559 $0.00559
Opus 5 $0.00280 $0.00280
Sonnet 5 $0.00112 $0.00112
Haiku 4.5 $0.00056 $0.00056

Measured 2d ago against content hash d3450f277516, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nextcloud-mcp AGENTS.md 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 2d 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.

AGENTS.md · 56 lines

How it starts

The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — nextcloud-mcp

What this server does

Exposes Nextcloud operations as MCP tools:

  • occ admin — version check, maintenance mode, app management, config, file scan, database maintenance, background jobs, FTS indexing, security check, log tail
  • OCS provisioning — user and group management, app password generation
  • WebDAV file ops — list, get, put, move, delete
  • Share management — create/list/delete public links and user/group shares

Tool groups

Group Scope Tools
occ-admin sysadmin occ_status, maintenance_mode, app_manage, config_get, config_set, files_scan, files_cleanup, db_add_missing_indices, db_convert_bigint, background_jobs, upgrade_check, security_check, fulltextsearch_index, external_storage_list, notify_push_selftest, log_tail, system_check
ocs-provisioning sysadmin user_list, user_create, user_disable, group_create, group_add_member, app_password_create
files per-agent dav_list, dav_get, dav_put, dav_move, dav_delete, share_create, share_list, share_delete

scoped-mcp integration (forge)

In ~/.claude/manifests/:

nextcloud-mcp:
  port: 8500
  grants:
    sysadmin:
      - occ-admin
      - ocs-provisioning
      - files
    developer:
      - files
    research:
      - files
    writer:
      - files
    security:
      - files

Important notes

  • config_set can break Nextcloud. Use config_get to read before writing.
  • app_password_create returns the password once. Store it in Vault immediately.
  • fulltextsearch_index --reset wipes and rebuilds the full OpenSearch index. Takes time.
  • dav_get / dav_put use base64 encoding for binary content.
  • WebDAV paths are relative to the user's file root (no leading slash needed).
  • share_create, share_list, share_delete authenticate as admin regardless of calling agent. This is intentional — admin auth is required for cross-user share management via OCS.

Read the full file on GitHub · 56 lines

Changes

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.

  1. 2d ago First seen · 56 lines · 559 tokens per session scan A d3450f277516

Subscribe to this mod's changes

nextcloud-mcp AGENTS.md is an instructions file published in the GitHub repository TadMSTR/nextcloud-mcp (0 stars, last pushed 1mo ago), licensed MIT. It adds 559 tokens to every session, about $0.0028 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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