id-impact

id-impact is a skill for Claude Code from lukasrepublic/agentic-foundry. It costs 199 tokens per session (3,496 once invoked), scanned A, original, MIT.

A read-only review of an infrastructure change before it is merged. It reports policy risks and gives a quick estimate of how widely the change may affect systems.

In plain words
What is it for?
Use it during pre-merge review of infrastructure changes to identify blocking policy findings, findings that need acknowledgement, and the likely blast radius, meaning the amount of infrastructure that could be affected.
Why use it?
Reviewers may miss risky rules or underestimate the number of systems a change can affect. This surfaces those signals without making the final approval decision.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the foundry plugin — 81 skills, 8 agents, 8 hooks, 1 MCP server shipped together

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/lukasrepublic/agentic-foundry/id-impact
Any agent
npx skills add lukasrepublic/agentic-foundry --skill id-impact
Clone the repo
git clone --depth 1 https://github.com/lukasrepublic/agentic-foundry

Made for: Claude Code.

Or install foundry, the plugin that ships this one along with the rest of its 81 skills, 8 agents, 8 hooks, 1 MCP server.

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 id-impact

README.md
[![agentmods](https://agentmods.dev/badge/skills/lukasrepublic/agentic-foundry/id-impact.svg)](https://agentmods.dev/skills/lukasrepublic/agentic-foundry/id-impact)
Your own site
<a href="https://agentmods.dev/skills/lukasrepublic/agentic-foundry/id-impact"><img src="https://agentmods.dev/badge/skills/lukasrepublic/agentic-foundry/id-impact.svg" alt="Measured on agentmods" height="20"></a>
Per session 199 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,496 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 5.1 $0.00199 $0.03496
Opus 5 $0.00100 $0.01748
Sonnet 5 $0.00040 $0.00699
Haiku 4.5 $0.00020 $0.00350

Measured 5d ago against content hash ed514cc922a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

id-impact 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 5d 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.

skills/id-impact/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

id-impact — two advisory pre-merge reads (policy-risk findings + the KEPT blast-radius tier hint)

v2 amendment (additive). id-impact now gives the operator two advisory pre-merge reads of a change, BEFORE authorize: (1) the policy-risk findings (the REAL change-risk) — surface foundry_plan_model.parse_policy_findings output and distinguish, per the corrected gating table, which findings are HARD-FAIL-shaped (no ack path) vs. ackable-shaped vs. advisory; and (2) the KEPT v1 blast_radius fast tier hint (the pre-policy heuristic, untouched, below). It is **advisory

  • read-only** — id-impact reads the real parse_policy_findings output directly (no second computation, no divergent re-implementation).

Honest disclosure — no live enforcer. Earlier design intent named a feat-foundry-infra-change-verdict component that would mechanically ENFORCE this gating table at merge time. That verdict-enforcement machinery does not exist in scripts/ — it was part of the bespoke merge-gate stack retired in the earlier realignment (see docs/DESIGN.md, docs/merge-floor.md). Today id-impact's two reads are surfaced for the operator/reviewer to weigh at the merge floor (the adopter's branch protection + CI checks + human review) — nothing currently blocks a merge on a deny finding or an un-acked HIGH finding automatically. Wiring that as a required CI check is the adopter's own policy-as-code job, per docs/merge-floor.md.

Stale framing DROPPED. There is no shared match_blast function and no native cross-plane blast engine — both were removed; match_blast stays dropped. Change-RISK comes from the profile's policy-as-code (infra_binding.policy → conftest findings parsed by parse_policy_findings), NOT a native tier. The blast_radius tier is the fast advisory hint (Correction C), not an enforcer.

The advisory policy-findings procedure (v2 — the REAL change-risk)

Read the full file on GitHub · 179 lines

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. 5d ago First seen · 179 lines · 199 tokens per session scan A ed514cc922a0

Subscribe to this mod's changes

id-impact is a skill published in the GitHub repository lukasrepublic/agentic-foundry (1 stars, last pushed today), licensed MIT. It adds 199 tokens to every session and 3,496 once invoked, about $0.0010 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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