ph-programming

ph-programming is a skill for Claude Code, Codex from jyt6640/persona-harness. It costs 25 tokens per session (270 once invoked), scanned A, original, Apache-2.0.

Scoped implementation guidance for software changes. It includes reading nearby project conventions, writing a focused failing test, making a small compatible change, and checking the result.

In plain words
What is it for?
Use it for a specific implementation request, including Java or Spring projects where the packaged Java guidance applies.
Why use it?
It gives a disciplined path from a clearly chosen behavior to a verified code change without starting unrelated project workflows.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/jyt6640/persona-harness/programming
Any agent
npx skills add jyt6640/persona-harness --skill programming
Clone the repo
git clone --depth 1 https://github.com/jyt6640/persona-harness

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for ph-programming

README.md
[![agentmods](https://agentmods.dev/badge/skills/jyt6640/persona-harness/programming.svg)](https://agentmods.dev/skills/jyt6640/persona-harness/programming)
Your own site
<a href="https://agentmods.dev/skills/jyt6640/persona-harness/programming"><img src="https://agentmods.dev/badge/skills/jyt6640/persona-harness/programming.svg" alt="Measured on agentmods" height="20"></a>
Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 270 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00025 $0.00270
Opus 5 $0.00013 $0.00135
Sonnet 5 $0.00005 $0.00054
Haiku 4.5 $0.00003 $0.00027

Measured today against content hash c800920df5cb, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ph-programming 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 today.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/java/check-no-excuse-rules.sh, scripts/java/new-project.py, scripts/java/verify-no-excuse-fixtures.sh, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

packages/host-plugins/antigravity/skills/programming/SKILL.md · 29 lines

What it actually says

(PH) Programming Discipline

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.

Programming Discipline

Use this concise, Persona-owned guidance only after the user has selected a scoped behavior. Read the project profile and nearby code first, write a failing focused test, make the smallest compatible change, then verify the changed behavior. Do not infer a project stack from this package's Node metadata and do not start a workflow, branch, ticket, or agent automatically.

The packaged language overlay is references/java/ for Java/Spring projects. Other language references are not a packaged Persona contract and must not be claimed as available guidance.

Files

What ships with it

47 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. today Changed · +9 lines · +4 tokens per session c800920df5cb
  2. 4d ago First seen · 20 lines · 21 tokens per session scan A 8b8a6d0a57e8

Subscribe to this mod's changes

ph-programming is a skill published in the GitHub repository jyt6640/persona-harness (23 stars, last pushed yesterday), licensed Apache-2.0. It adds 25 tokens to every session and 270 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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