A shared identity hub that creates the per-project file describing a project's brand, founder voice, product, and ideal customer profile. Other domain skills use this information to adapt their work.

Use it to create or maintain the project identity file that marketing, mail, finance, and other connected skills rely on.

It gives related skills one consistent project context instead of requiring each skill to infer the project's identity separately.

skill-core — Skill for Claude Code by ikenga-hq/ikenga-pkgs

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.

Any agent

npx skills add ikenga-hq/ikenga-pkgs --skill skill-core

Clone the repo

git clone --depth 1 https://github.com/ikenga-hq/ikenga-pkgs

Made for: Claude Code.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/ikenga-hq/ikenga-pkgs/skill-core/github.svg)](https://agentmods.dev/skills/ikenga-hq/ikenga-pkgs/skill-core)

Your own site

<a href="https://agentmods.dev/skills/ikenga-hq/ikenga-pkgs/skill-core"><img src="https://agentmods.dev/badge/skills/ikenga-hq/ikenga-pkgs/skill-core/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/ikenga-hq/ikenga-pkgs/skill-core"><img src="https://agentmods.dev/badge/skills/ikenga-hq/ikenga-pkgs/skill-core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 169 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 806 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00169	$0.00806
Opus 5.5	$0.00068	$0.00322
Sonnet 5.5	$0.00034	$0.00161
Haiku 4.5	$0.00017	$0.00081

Measured 2mo ago against content hash c04afa3cc338, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

skill-core 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 2mo 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.

packages/skills/core/skills/skill-core/SKILL.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

skill-core — the lean identity hub

This file is a router. skill-core is the hub of the skill graph: every domain skill declares depends_on: ['skill-core'] (a one-way star, G-04, lint-enforced in 06-skill-action-contract.md §5). skill-core itself depends on nothing (depends_on: []).

Lean hub (founder decision, 2026-05-30). skill-core ships exactly one action — setup, the per-project identity generator. It carries no domain logic, no shared lore / editorial bundle, and no shared query / pipeline base. Those are deferred (R-03 query-collapse, R-04 pipeline base). The single job of this package is to resolve the depends_on: ['skill-core'] edge and to localise project identity that the domain skills read.

Purpose (one line)

Generate and maintain the per-project identity instance file (.atelier/skill-core/manifest.json) that the domain skills localise against.

Actions

Action	File	Mode	One-liner
`setup`	`actions/setup.md`	`streaming`	Infer the project's identity (brand, founder voice, product, ICP) and write `.atelier/skill-core/manifest.json`.

The setup action conforms to the locked ActionFrontmatter Zod schema in plans/atelier/drafts/action-frontmatter.ts and is the worked example B in 06-skill-action-contract.md §8.

Routing

If the user says…	Load	Then
"set up the project", "configure identity", "setup skill-core", "who are we"	`actions/setup.md`	`ai_infer` (draft from repo) or `interview` mode; confirm in chat; write `.atelier/skill-core/manifest.json`

What skill-core does NOT do

No domain logic — no briefing, triage, sends, finance, content, research, or strategy actions. Those live in the domain skills.
No shared lore / editorial bundle — deferred. skill-core is identity only.
No shared query / pipeline base — deferred (R-03 / R-04).
No DB reads or writes — setup writes only the .atelier/ project-config instance file via the host fs capability. No sqlite, no Supabase.

Read the full file on GitHub · 82 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.

actions/setup.md 3.9 KB

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.

2mo ago First seen · 82 lines · 169 tokens per session scan A c04afa3cc338

Subscribe to this mod's changes

skill-core is a skill published in the GitHub repository ikenga-hq/ikenga-pkgs (0 stars, last pushed today), licensed Apache-2.0. It adds 169 tokens to every session and 806 once invoked, about $0.0007 per session on Opus 5.5. 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.

skill-core next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
skill-coreikenga-hq/ikenga-pkgs	Skill	0	today	Apache-2.0	A	169	Claude Code
imagegenopenai/codex	Skill	134k	today	Apache-2.0	A	113	Codex
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	yesterday	MIT	A	200	Claude Code, Codex
playwright-climicrosoft/playwright	Skill	100k	yesterday	Apache-2.0	A	19	Claude Code
browser-automationopenclaw/openclaw	Skill	394k	today	MIT	A	36	Claude Code
systematic-debuggingobra/superpowers	Skill	314k	5d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	today	MIT	A	95	Claude Code