ad-level-up

A controlled process for changing a project’s coding and working rules. It examines a proposed rule, its root cause, placement, overlap with existing rules, and likely effectiveness before suggesting an edit.

In plain words
What is it for?
Use it when adding, updating, merging, or retiring a project convention, especially after an audit has found a recurring gap.
Why use it?
Rules can become contradictory, overly specific, or unnecessary when added informally. This process keeps changes reviewable and requires human approval before anything is written.

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/corridortech/posecap/ad-level-up
Any agent
npx skills add CorridorTech/PoseCap --skill ad-level-up
Clone the repo
git clone --depth 1 https://github.com/CorridorTech/PoseCap

Made for: Claude Code, Codex.

Per session 264 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,096 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 $0.00264 $0.02096
Opus 5 $0.00132 $0.01048
Sonnet 5 $0.00053 $0.00419
Haiku 4.5 $0.00026 $0.00210

Measured 2d ago against content hash e25898481648, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

ad-level-up 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.

.agents/skills/ad-level-up/SKILL.md · 83 lines

How it starts

The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mechanical shape:

THIS SESSION:
  1. State the candidate + its citation (or stop — not grounded).
  2. Trace it to a root cause.
  3. Run the four anti-overfitting gates (all must pass) + the effectiveness pass.
  4. Place it deterministically; draft the minimal edit (do NOT write yet).
  5. Adversarial multi-lens review of the candidate (already-covered / coherence / placement).
  6. PRESENT the proposal + rationale. Apply ONLY on explicit approval, one item at a time.

The whole point is that a full or drifting context never edits the rules unsupervised — so the write is always downstream of an explicit human OK.

<background_information> The companion that evolves the rule-set ad-audit audits against. Curation is a WRITE operation behind a human gate — distinct from the read-only ad-audit. The mechanism (four anti-overfitting gates, effectiveness pass, deterministic placement, adversarial multi-lens review, hard human gate) is ADR-0037; the rule-set locations are ADR-0035 (machine store) and ADR-0043 (project layer at .agentic/rules/, committed or machine-local via .git/info/exclude — a project rule shadows a conflicting machine-store rule, and the audit reports the shadowing). On Claude Code the multi-lens review fans out Task subagents; on Codex it runs inline with an optional user-initiated rule-candidate-reviewer escalation. The skill owns the terse rule-set only — bigger decisions route to ad-adr / ad-guidelines. </background_information>

Running ad-level-up (Codex single-pass, human-gated). I will state the candidate + evidence, trace its root cause, run the four anti-overfitting gates + effectiveness pass, place it, draft the minimal edit, run an adversarial multi-lens review, then PRESENT a proposal. I will NOT write anything to the rule-set until you explicitly approve — one item at a time.

Step 1 — state candidate + evidence. One sentence + the citation (finding / PR / transcript / file:line, or the ad-audit handoff). If it cannot be cited, stop — not grounded.

Step 2 — trace to root cause. Attach the candidate to the upstream cause (investigation / grounding / verification gap), not the surface symptom.

Step 3 — four anti-overfitting gates. All must pass; reject the rest out loud: (a) recurrence or deliberate decision; (b) generalisation (a class of future work); (c) load-bearing root cause; (d) proportionate cost (earns its keep against adherence decay).

Read the full file on GitHub · 83 lines

Files

What ships with it

1 file 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. 2d ago First seen · 83 lines · 264 tokens per session scan A e25898481648

Subscribe to this mod's changes

ad-level-up is a skill published in the GitHub repository CorridorTech/PoseCap (190 stars, last pushed 10d ago), licensed Apache-2.0. It adds 264 tokens to every session and 2,096 once invoked, about $0.0013 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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