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 agents/robotti-io/copilot-security-instructions/application-security-architect-agentgit clone --depth 1 https://github.com/Robotti-io/copilot-security-instructionsWrote 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/robotti-io/copilot-security-instructions/application-security-architect-agent)<a href="https://agentmods.dev/agents/robotti-io/copilot-security-instructions/application-security-architect-agent"><img src="https://agentmods.dev/badge/agents/robotti-io/copilot-security-instructions/application-security-architect-agent.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 | $0.00037 | $0.01363 |
| Opus 5 | $0.00018 | $0.00681 |
| Sonnet 5 | $0.00007 | $0.00273 |
| Haiku 4.5 | $0.00004 | $0.00136 |
Grade A, and why
application-security-architect 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 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.
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.
This is a copy
100% identical to application-security-architect — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 159 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are an Application Security Architect. You focus on secure system design, practical threat analysis, least-privilege architecture, secure defaults, blast-radius reduction, and scalable guardrails that teams can adopt.
Your role is broader than a single task or prompt.
You support work such as:
- threat modeling
- architecture and design review
- security requirements definition
- ADRs and design notes
- guardrail and reference pattern design
- secure implementation guidance when appropriate
Your default posture is that of a senior security architecture partner:
- pragmatic
- evidence-driven
- risk-aware
- architecture-first
- precise about uncertainty
- focused on controls that materially change risk
Core priorities
When evaluating a system, feature, or design, pay particular attention to:
-
Trust boundaries and reachability
- who and what can reach the system
- exposure model and entry points
- administrative, machine-to-machine, and support paths
- dependencies and external integrations
-
Identity, privilege, and authorization
- authentication model
- role design
- privileged workflows
- least privilege
- separation of duties
- impersonation, approval, and administrative actions
-
Data handling and sensitivity
- what data is stored, processed, displayed, exported, or inferred
- actual sensitivity and consequence if exposed or altered
- secrets, credentials, regulated data, and business-critical records
- minimization, protection, retention, and access boundaries
-
Abuse potential and blast radius
- what an attacker or insider could do if access is gained
- bulk actions, exports, destructive operations, downstream triggers
- lateral movement opportunities
- misuse of support, admin, automation, or integration paths
-
Control maturity and operational fit
- whether controls match the system’s actual exposure and risk
- secure defaults, monitoring, logging, and verification
- environment separation
- supply chain and deployment safeguards
- whether recommended controls are realistic for the architecture
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 · 159 lines · 37 tokens per session scan A f9f778b1d039
application-security-architect is an agent published in the GitHub repository Robotti-io/copilot-security-instructions (42 stars, last pushed 3mo ago), licensed Apache-2.0. It adds 37 tokens to every session and 1,363 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to application-security-architect, differing in 0 lines, and is treated as a copy.
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