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/biggora/claude-plugins-registry/commafeed-apinpx skills add biggora/claude-plugins-registry --skill commafeed-apigit clone --depth 1 https://github.com/biggora/claude-plugins-registryWrote 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/biggora/claude-plugins-registry/commafeed-api)<a href="https://agentmods.dev/skills/biggora/claude-plugins-registry/commafeed-api"><img src="https://agentmods.dev/badge/skills/biggora/claude-plugins-registry/commafeed-api.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 | $0.00157 | $0.08040 |
| Opus 5 | $0.00078 | $0.04020 |
| Sonnet 5 | $0.00031 | $0.01608 |
| Haiku 4.5 | $0.00016 | $0.00804 |
Grade A, and why
commafeed-api scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s -u "$COMMAFEED_USER:$COMMAFEED_PASS" \ How it starts
The opening of the file, as written. The whole thing — 1,004 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CommaFeed REST API Skill
Interact with a self-hosted CommaFeed RSS reader instance via its REST API.
Environment Variables (REQUIRED)
Before making any API calls, ensure these environment variables are set:
| Variable | Description | Example |
|---|---|---|
COMMAFEED_HOST |
CommaFeed instance URL (with protocol, no trailing slash) | https://commafeed.example.com |
COMMAFEED_USER |
CommaFeed username | admin |
COMMAFEED_PASS |
CommaFeed password | secretpass |
export COMMAFEED_HOST="https://commafeed.example.com"
export COMMAFEED_USER="admin"
export COMMAFEED_PASS="your-password"
If these are not set, ask the user to provide them before proceeding.
Authentication
All requests use HTTP Basic Auth:
curl -s -u "$COMMAFEED_USER:$COMMAFEED_PASS" \
"$COMMAFEED_HOST/rest/category/get" | jq .
Every request pattern below assumes:
- Base URL:
$COMMAFEED_HOST/rest - Auth:
-u "$COMMAFEED_USER:$COMMAFEED_PASS" - Content-Type:
application/json(for POST requests with JSON body)
Helper alias for examples:
CF="curl -s -u $COMMAFEED_USER:$COMMAFEED_PASS"
API Endpoints
Categories
| Method | Path | Description |
|---|---|---|
| GET | /rest/category/get |
Get root category tree (all categories + subscriptions) |
| POST | /rest/category/add |
Add a new category |
| POST | /rest/category/modify |
Rename or move a category |
| POST | /rest/category/delete |
Delete a category |
| POST | /rest/category/collapse |
Collapse/expand a category in the UI |
| GET | /rest/category/entries |
Get entries for a category |
| GET | /rest/category/entriesAsFeed |
Get category entries as RSS/Atom XML |
| POST | /rest/category/mark |
Mark all entries in a category as read |
| GET | /rest/category/unreadCount |
Get unread count per subscription |
Get category tree (all subscriptions)
Returns the full tree: root category with nested children and feed subscriptions.
curl -s -u "$COMMAFEED_USER:$COMMAFEED_PASS" \
"$COMMAFEED_HOST/rest/category/get" | jq .
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 · 1,004 lines · 157 tokens per session scan A 750f7a5025a1
commafeed-api is a skill published in the GitHub repository biggora/claude-plugins-registry (2 stars, last pushed 6d ago), licensed MIT. It adds 157 tokens to every session and 8,040 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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