Accessibility Aggregation
Merges ATAC-seq/DNase-seq peaks into a union chromatin map — needs a companion MCP server for data fetch.
Test report
- Verdict
- Works with setup
- Score
- Tested
- Jul 14, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Aug 10, 2026 · f2f895c
Ran the actual bedtools pipeline on synthetic ATAC/DNase narrowPeak data: the skill's blocklist + signalValue + sub-nucleosomal filters correctly dropped a planted blacklist artifact and a 20bp Tn5 fragment that a naive baseline merge kept as false 'accessible regions', but its own confidence-tier AWK logic makes the 'Supported' tier unreachable for N<=4 samples, and the ENCODE search/download steps need a separate encode-toolkit MCP server not included in the skill folder.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 8/10
- Docs & honesty 4/5
What Accessibility Aggregation does
Aggregates ATAC-seq and DNase-seq narrowPeak files from multiple ENCODE experiments into a union open-chromatin peak set, applying ENCODE blocklist filtering, per-sample signalValue filtering, ATAC sub-nucleosomal artifact removal, and high/supported/singleton confidence tiering. Triggers on requests like 'aggregate ATAC-seq peaks for pancreas' or 'where is chromatin accessible in my tissue'. Steps 1-3 and 7 (search/download/provenance-log) call custom encode_* tools that only exist if the companion encode-toolkit MCP server is installed separately; steps 4-6 (blocklist/signal filtering, bedtools merge, confidence annotation) and the bundled validate_peaks.py script are self-contained and run standalone.
How to install Accessibility Aggregation
git clone https://github.com/ammawla/encode-toolkit
cd encode-toolkit
mkdir -p ~/.claude/skills
cp -r skills/accessibility-aggregation ~/.claude/skills/accessibility-aggregation
Skills live in ~/.claude/skills/ (global) or .claude/skills/
(per-project). Restart Claude Code after installing.
Commands — how to trigger Accessibility Aggregation
-
/accessibility-aggregationMerges ATAC-seq/DNase-seq peaks into a union chromatin map — needs a companion MCP server for data fetch.
It also activates on plain-language prompts like these:
-
Aggregate ATAC-seq peaks for pancreas into one accessibility map -
Where is chromatin accessible across these DNase-seq samples? -
Merge these ENCODE experiments with blocklist filtering applied
Frequently asked questions
- Is the Accessibility Aggregation skill free?
- Yes. The skill itself is free from ammawla/encode-toolkit. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Accessibility Aggregation work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Works with setup. Ran the actual bedtools pipeline on synthetic ATAC/DNase narrowPeak data: the skill's blocklist + signalValue + sub-nucleosomal filters correctly dropped a planted blacklist artifact and a 20bp Tn5 fragment that a naive baseline merge kept as false 'accessible regions', but its own confidence-tier AWK logic makes the 'Supported' tier unreachable for N<=4 samples, and the ENCODE search/download steps need a separate encode-toolkit MCP server not included in the skill folder.
- What is the Accessibility Aggregation SkillProof Score?
- 8.8/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 8/10, docs & honesty 4/5.
- How do I install Accessibility Aggregation?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Accessibility Aggregation with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.