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/jyt6640/persona-harness/implementationnpx skills add jyt6640/persona-harness --skill implementationgit clone --depth 1 https://github.com/jyt6640/persona-harnessWrote 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/jyt6640/persona-harness/implementation)<a href="https://agentmods.dev/skills/jyt6640/persona-harness/implementation"><img src="https://agentmods.dev/badge/skills/jyt6640/persona-harness/implementation.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 | $0.00022 | $0.00201 |
| Opus 5 | $0.00011 | $0.00101 |
| Sonnet 5 | $0.00004 | $0.00040 |
| Haiku 4.5 | $0.00002 | $0.00020 |
Grade A, and why
ph-implementation 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 yesterday.
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
(PH) Scoped Implementation
This adapter exposes the canonical Persona Harness skill to this host only. Discovery alone does not authorize workflow, shell, network, GitHub, authority, evidence, or external actions.
Scoped Implementation
Implement only the approved behavior and preserve existing project conventions.
Verify the focused contract, name remaining uncertainty, and hand off explicitly
to review. Do not infer workflow authority, create agents, or claim completion
from this procedure.
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.
- yesterday Changed · +9 lines · +5 tokens per session 2453638f0131
- 6d ago First seen · 15 lines · 17 tokens per session scan A a9af88b81d6f
ph-implementation is a skill published in the GitHub repository jyt6640/persona-harness (23 stars, last pushed 2d ago), licensed Apache-2.0. It adds 22 tokens to every session and 201 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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