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.
git clone --depth 1 https://github.com/moruno21/agents-concertoWrote 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/agents/moruno21/agents-concerto/implementer)<a href="https://agentmods.dev/agents/moruno21/agents-concerto/implementer"><img src="https://agentmods.dev/badge/agents/moruno21/agents-concerto/implementer/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.
<a href="https://agentmods.dev/agents/moruno21/agents-concerto/implementer"><img src="https://agentmods.dev/badge/agents/moruno21/agents-concerto/implementer.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00086 | $0.01427 |
| Opus 5.5 | $0.00034 | $0.00571 |
| Sonnet 5.5 | $0.00017 | $0.00285 |
| Haiku 4.5 | $0.00009 | $0.00143 |
Grade A, and why
implementer 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 1mo 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 1mo ago First seen · 114 lines · 86 tokens per session scan A 18f6e1fa8d9f
implementer is an agent published in the GitHub repository moruno21/agents-concerto (2 stars, last pushed 3mo ago), with no licence file. It adds 86 tokens to every session and 1,427 once invoked, about $0.0003 per session on Opus 5.5. 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.
Other agents, from other repositories
gaia-system
Use when building, modifying, or auditing Gaia's own machinery — agents, skills, hooks and hook modules, routing config, CLI plugins, build manifests — or when analyzing Gaia's architecture, install, or release surface. Not for work in the user's application, infrastructure, cluster, or live runtime.
gitops-operator
Use when creating, modifying, or reviewing the desired state of a Kubernetes cluster declared in Git — Flux HelmReleases, Argo Applications, Kustomizations, Helm values, manifests, ConfigMaps, Ingress — or when reasoning about reconciliation and drift between Git and the running cluster.
browser-agent
General-purpose browser automation agent using playwright-cli. Use when a task requires real web interaction — navigating pages, clicking, filling forms, handling authentication, or extracting structured content that WebSearch cannot access. Do not use for simple information lookup; prefer WebSearch first.
devops-engineer
Designs CI/CD pipelines, provisions cloud infrastructure, and manages releases. Absorbed cloud-engineer and release-manager responsibilities. Runs as the sole Ship phase agent. Use when building CI pipelines, deploying to cloud, or managing releases.
system-audit-gatherer
../../.assistants/cantos/sub-agents/system-audit-gatherer.md.
system-audit-reasoner
../../.assistants/cantos/sub-agents/system-audit-reasoner.md.