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/treex-x/workflowx/engineeringxnpx skills add TreeX-X/WorkFlowX --skill engineeringxgit clone --depth 1 https://github.com/TreeX-X/WorkFlowXWhat 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 | $0.00015 | $0.00207 |
| Opus 5 | $0.00008 | $0.00103 |
| Sonnet 5 | $0.00003 | $0.00041 |
| Haiku 4.5 | $0.00002 | $0.00021 |
Grade A, and why
engineeringX 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 2d 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.
What it actually says
engineeringX
Use these principles when implementing or modifying code.
Implementation Principles
- Understand the goal and scope before editing; do not guess about critical ambiguity.
- Make the smallest change that solves the stated problem.
- Prefer the simplest clear solution; avoid speculative abstractions, state, configuration, and dependencies.
- Follow existing project patterns, naming, and tools.
- Keep every change traceable to the requirement or a necessary constraint.
- Never claim checks or tests that were not run.
Self-Review
Before reporting completion, inspect the result and ask:
- Does it solve the requested problem?
- Did the change exceed scope?
- Can any code, state, branch, or dependency be removed?
- Is the implementation path short and easy to understand?
- Are obvious boundaries and failures handled?
- Are stale imports, references, or configuration entries left behind?
- What verification was actually performed?
Report unresolved concerns explicitly.
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.
- 2d ago First seen · 32 lines · 15 tokens per session scan A f12e3e5b778c
engineeringX is a skill published in the GitHub repository TreeX-X/WorkFlowX (55 stars, last pushed 2d ago), licensed MIT. It adds 15 tokens to every session and 207 once invoked, about $0.0001 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 2026-08-30.
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