Plugins and skills for AI agents. The skills follow the Agent Skills open standard, so their bodies and bundled scripts are portable across tools that speak it. The packaging in this repo — hooks included — targets Claude Code, which consumes it as a plugin marketplace; other formats may join as the collection grows.
Add the marketplace, then install a plugin:
/plugin marketplace add 4nrry/agent-plugins
/plugin install agent-fleet@4nrry
Or paste 4nrry/agent-plugins into the Claude Desktop Add marketplace dialog.
Rules for multi-agent work: routing each phase to the right model, sizing a
fan-out, constraining output schemas, and verifying what agents return with a
bundled citation checker (scripts/verify_citations.py).
Ships a UserPromptSubmit hook that injects the skill whenever the prompt
invokes deep-research or ultracode. The hook exists because the description
alone barely triggers the skill: over 20 frozen queries run 3 times each, the
shipped description fired on 2 of 30 should-trigger runs (per-query recall
0.00–0.33), and four optimizer rewrites never moved the held-out score — while
all five descriptions stayed silent on all 150 should-not runs. Triggering
is therefore mechanical, not persuasive. Raw harness output, eval set and the
full reading:
bench/results/2026-08-06-trigger-eval/.
The rules in the skill body come from paired A/B runs made while developing it; those predate this repository's protocol and are not published as records here, so read them as design notes rather than as measurements you can check.
Improvement claims about plugins in this repo are comparisons between run
records committed under bench/results/, collected per
bench/PROTOCOL.md — per-agent token splits, resolved
model IDs, paired arms with hash-checked prompts, and outcomes tagged by
source (script measurement vs orchestrator assertion). A claim without
records is marketing and does not belong here.
Records collected before that protocol existed, or by a foreign harness, are published as raw output with their hashes and are labeled imported in the first paragraph of their claims file, together with every field they lack and every claim that lack forbids.