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agentic_coding_lab: Skill for Claude Code

.claude/skills/exact-coding-baseline-export/SKILL.md

exact-coding-baseline-export is a skill for Claude Code from marcoemrich/agentic_coding_lab. It costs 182 tokens per session (17,597 once invoked), scanned B, original, MIT.

A workflow for turning current research into a dated, consumer-ready exact-coding baseline. It applies defined changes to a source workflow and saves the result in a new export folder without changing the source.

In plain words
What is it for?
Use it to export a selected or automatically detected coding workflow into a dated directory, with one output subtree for each supported coding harness.
Why use it?
It keeps the original workflow intact while producing a version that can be used outside the research process. It also prevents accidental replacement of an existing snapshot for the same date.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is marcoemrich/agentic_coding_lab's own configuration. It tells Claude Code how to work on agentic_coding_lab itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything agentic_coding_lab configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/memrich/sync/work/konferenzen_und_talks/exact_coding/exact-coding-exercises.

not rated 30repo +16 changed 4d ago B scan 182 tokens original MIT
View source ↗ marcoemrich/agentic_coding_lab
Reuse

Borrowing it

Nothing to install: this file belongs to marcoemrich/agentic_coding_lab. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/marcoemrich/agentic_coding_lab/main/.claude/skills/exact-coding-baseline-export/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/marcoemrich/agentic_coding_lab

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.

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README.md
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Your own site
<a href="https://agentmods.dev/skills/marcoemrich/agentic_coding_lab/exact-coding-baseline-export"><img src="https://agentmods.dev/badge/skills/marcoemrich/agentic_coding_lab/exact-coding-baseline-export/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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/marcoemrich/agentic_coding_lab/exact-coding-baseline-export"><img src="https://agentmods.dev/badge/skills/marcoemrich/agentic_coding_lab/exact-coding-baseline-export.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 182 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 17,597 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00182 $0.17597
Opus 5.5 $0.00073 $0.07039
Sonnet 5.5 $0.00036 $0.03519
Haiku 4.5 $0.00018 $0.01760

Measured 4d ago against content hash 21aa5c82b169, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

exact-coding-baseline-export scanned grade B with 1 finding 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 4d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (export-sol.py), 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.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

grep -rl '@\.claude/rules/' "$TARGET/.claude" | while read -r p; do
.claude/skills/exact-coding-baseline-export/SKILL.md · 1,405 lines

How it starts

The opening of the file, as written. The whole thing — 1,405 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: exact-coding-baseline-export

Mint a dated, consumer-ready snapshot of the current best TDD workflow into research/workflow-dev/export/<YYYY-MM-DD>-exact-coding-baseline/.

This is a true transformation skill — it reads a source workflow (immutable) and applies three transformations on top of it (see "The three transformations" below), writing the result as a new snapshot. The skill is self-contained: the HITL consumable template and the README template live alongside this file under templates/, and the harness research lives in HARNESS-MECHANISMS.md.

Scope

  • Source repo: writes snapshots only inside research/workflow-dev/export/ and never edits source workflows under experiments/workflows/.
  • Distribution sync is explicit: the SOL exporter may additionally create or update the canonical main and harness/* branches in EXACT-Coding when --sync-distribution <repo> is passed. It commits locally and never pushes.
  • One artifact per line and date: Opus writes <DATE>-exact-coding-baseline/; SOL writes <DATE>-exact-coding-ptdd-v<VERSION>/, where <VERSION> is the source's version (exact-ptdd-v1.2-verification-split-pi → v1.2). Each contains one subtree per exported harness.
  • Idempotent within a date and line: refuses to overwrite an existing same-date snapshot unless the user explicitly says "overwrite" / "force".

Two promoted EXACT Coding lines

The distribution has two parallel lines. Do not replace one with the other:

Line Default source Native harness Snapshot name
opus the correctness-critical Opus/Hybrid recommendation in workflow-construction.md Claude Code <DATE>-exact-coding-baseline
sol the universal PTDD default in model-recommendation-matrix.md pi <DATE>-exact-coding-ptdd-v<VERSION>

When the requested line is sol, run the checked-in exporter rather than manually applying the Hybrid-specific steps below:

python3 .claude/skills/exact-coding-baseline-export/export-sol.py \
  --date "$DATE" \
  --sync-distribution /home/memrich/sync/work/konferenzen_und_talks/exact_coding/exact-coding-exercises \
  --note "Driving and verification tests are split in the test list (RQ-ptdd-verification-split)" \
  --note "Adds the Rust/Cargo stack profile"

Read the full file on GitHub · 1,405 lines

Files

What ships with it

15 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. 4d ago Changed · +3 lines 21aa5c82b169
  2. 8d ago Changed · +23 lines dd583707eb1a
  3. 11d ago Changed · +2 lines 33fbac93c47d
  4. 1mo ago Changed · +8 lines 095852c68914
  5. 1mo ago Changed · +93 lines 85cfe89b32cc
  6. 1mo ago Changed · +4 lines 552e1483af4f
  7. 1mo ago Changed 6399fab142a4
  8. 1mo ago Changed · +83 lines · +25 tokens per session f2030945fc4c
  9. 1mo ago Changed · +4 lines 0546c467b639
  10. 2mo ago First seen · 1,185 lines · 157 tokens per session scan B f4033143e888

Subscribe to this mod's changes

exact-coding-baseline-export is a skill published in the GitHub repository marcoemrich/agentic_coding_lab (30 stars, last pushed 5d ago), licensed MIT. It adds 182 tokens to every session and 17,597 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

PlanningResearch
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