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 skills add rpraharaj/forward-deployed-engineer --skill fde-orientgit clone --depth 1 https://github.com/rpraharaj/forward-deployed-engineerWrote 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/rpraharaj/forward-deployed-engineer/fde-orient)<a href="https://agentmods.dev/skills/rpraharaj/forward-deployed-engineer/fde-orient"><img src="https://agentmods.dev/badge/skills/rpraharaj/forward-deployed-engineer/fde-orient.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 5.1 | $0.00174 | $0.02992 |
| Opus 5 | $0.00087 | $0.01496 |
| Sonnet 5 | $0.00035 | $0.00598 |
| Haiku 4.5 | $0.00017 | $0.00299 |
Grade A, and why
fde-orient 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 7d 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.
How it starts
The opening of the file, as written. The whole thing — 211 lines — stays where its author put it; the contents beside it link to each section on GitHub.
FDE Orient
The front door to an engagement. Everything else in the portfolio reads the charter this produces.
Why this exists
The most expensive mistakes an FDE makes are made in the first week, before anyone knows enough to catch them: solving the stated ask instead of the real problem, mapping a system nobody needed mapped, or committing to a date before knowing what the code looks like. Those mistakes are cheap to prevent and very expensive to unwind — by the time they surface you've spent your credibility budget on the wrong thing.
This skill exists to spend thirty minutes establishing what is actually going on, and to leave a written charter that later skills read instead of re-deriving.
When this applies
- Starting at a new organization, client, or team
- Assigned to a project or system you don't know
- An engagement changes character and the plan no longer fits
- You're several days in and realize nobody wrote down what "done" means
When it doesn't
- A single well-defined task inside a system you already know — just do the task
- An active production incident. Run
incident-triage; orient afterwards if you're staying. - The charter already exists and is current. Read it and continue.
Prerequisites
None. This is the entry point.
Procedure
1. Check for an existing engagement
Resolve the workspace the same way later skills will — see ../_shared/workspace-conventions.md. Do not assume .fde/ in the repo root.
# Order: $FDE_WORKSPACE, then .fde/, then a sibling *-fde/
if [ -n "$FDE_WORKSPACE" ] && [ -f "$FDE_WORKSPACE/00-engagement.md" ]; then
cat "$FDE_WORKSPACE/00-engagement.md"
elif [ -f .fde/00-engagement.md ]; then
cat .fde/00-engagement.md
else
ls -d .fde ../*-fde 2>/dev/null
fi
If a charter exists, read it. Decide with the user whether this is a continuation (read it, proceed, don't restart) or a re-orientation (the engagement changed; supersede the old charter rather than editing it, so the history of what was believed survives).
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.
- 7d ago First seen · 211 lines · 0 tokens per session scan A 7f30fc9b850d
fde-orient is a skill published in the GitHub repository rpraharaj/forward-deployed-engineer (6 stars, last pushed 20d ago), licensed MIT. It adds 174 tokens to every session and 2,992 once invoked, about $0.0009 per session on Opus 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.
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