couchdb

couchdb is a skill for Claude Code, Codex from G1Joshi/Agent-Skills. It costs 40 tokens per session (1,139 once invoked), scanned B, original, MIT.

A JSON document database that communicates through HTTP and supports replication between multiple servers. It is especially suited to applications that must work offline and sync later.

In plain words
What is it for?
Use it for offline-first web or mobile apps, peer-to-peer replication, and applications that store data as JSON documents.
Why use it?
It addresses unreliable connectivity by letting local and remote copies of data synchronise, including handling conflicting edits.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it for offline-first web or mobile apps, peer-to-peer replication, and applications that store data as JSON documents.

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Install with agentmods
npx agentmods add skills/g1joshi/agent-skills/couchdb
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.

Any agent
npx skills add G1Joshi/Agent-Skills --skill couchdb
Clone the repo
git clone --depth 1 https://github.com/G1Joshi/Agent-Skills

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for couchdb

README.md
[![agentmods](https://agentmods.dev/badge/skills/g1joshi/agent-skills/couchdb/github.svg)](https://agentmods.dev/skills/g1joshi/agent-skills/couchdb)
Your own site
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/couchdb"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/couchdb/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for couchdb

Your own site · 80×15
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/couchdb"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/couchdb.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,139 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00040 $0.01139
Opus 5.5 $0.00016 $0.00456
Sonnet 5.5 $0.00008 $0.00228
Haiku 4.5 $0.00004 $0.00114

Measured 22d ago against content hash 7661c904ef85, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

couchdb scanned grade B with 2 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 22d 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.

Sends data to an external URLmediumData exfiltration

A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.

curl -X PUT "http://127.0.0.1:5984/mydb/doc1" -H "Content-Type: application/json" -d "{"_rev": "$REV", "title": "Updated Document", "status": "resolved"}"

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -X PUT http://admin:[email protected]:5984/my_database/doc1 \
skills/databases/couchdb/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Apache CouchDB

CouchDB is a database that completely embraces the web. It speaks JSON and HTTP. It is unique for its multi-master replication protocol, making it ideal for "Offline First" apps.

When to Use

  • Offline-First Synchronized Web & Mobile Apps: Pairing with PouchDB in web browsers to enable full offline operation with automated background sync.
  • RESTful HTTP Document Storage: Accessing and mutating JSON documents purely through standard HTTP verbs without proprietary drivers.
  • Append-Only Document Versioning: Tracking document revision histories and managing conflicting edits explicitly.
  • Distributed Peer-to-Peer Replication: Replicating databases bidirectionally across edge servers, embedded devices, and cloud nodes.

Quick Start

# Create a document via REST API
curl -X PUT http://admin:[email protected]:5984/my_database/doc1 \
     -d '{"key": "value"}'

Core Concepts

Pure HTTP/RESTful Interface

Every database operation maps directly to standard HTTP methods:

# 1. Create a document
curl -X POST http://admin:[email protected]:5984/mydb \
  -H "Content-Type: application/json" \
  -d '{"title": "Offline-First Architectures", "status": "published"}'
# Returns: {"ok": true, "id": "8f3d1e1c...", "rev": "1-a1b2c3d4..."}

# 2. Retrieve document by ID
curl -X GET http://admin:[email protected]:5984/mydb/8f3d1e1c...

Multiversion Concurrency Control (MVCC) & Revisions (_rev)

Updating documents requires passing the active revision tag to prevent accidental overwrites:

# Update requires passing latest _rev token
curl -X PUT http://admin:[email protected]:5984/mydb/8f3d1e1c... \
  -H "Content-Type: application/json" \
  -d '{"_rev": "1-a1b2c3d4...", "title": "Updated Title", "status": "draft"}'

Bi-Directional Master-Master Replication

Syncs databases seamlessly between independent nodes:

// POST to /_replicate
{
  "source": "http://edge-node.local:5984/pos_sales",
  "target": "https://admin:[email protected]:5984/pos_sales",
  "continuous": true,
  "create_target": true
}

Read the full file on GitHub · 110 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. 22d ago Changed 7661c904ef85
  2. 27d ago Changed · +57 lines · +22 tokens per session scan A → B 9262979460a6
  3. 1mo ago First seen · 53 lines · 18 tokens per session scan A 30eb37794173

Subscribe to this mod's changes

couchdb is a skill published in the GitHub repository G1Joshi/Agent-Skills (15 stars, last pushed 23d ago), licensed MIT. It adds 40 tokens to every session and 1,139 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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