feature

A GitHub repository work tool with modes for building features across watched repositories, improving one outside repository, or reviving a dormant one. A repository is a project hosted on GitHub; a pull request is a proposed change for review.

In plain words
What is it for?
Use it to ship feature pull requests, improve a chosen external repository, fix an open issue, or restart work on an inactive project.
Why use it?
It turns several kinds of repository maintenance into a defined workflow and keeps each change focused on one feature or issue.

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/aeonfun/aeon/feature
Any agent
npx skills add aeonfun/aeon --skill feature
Clone the repo
git clone --depth 1 https://github.com/aeonfun/aeon

Made for: Claude Code, Codex.

Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 7,141 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 2 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 $0.00046 $0.07141
Opus 5 $0.00023 $0.03571
Sonnet 5 $0.00009 $0.01428
Haiku 4.5 $0.00005 $0.00714

Measured 2d ago against content hash 2a02d778f165, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

feature scanned grade C with 2 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

rm -rf "$WORK_DIR"

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- Fetch the canonical upstream text **straight to disk with `curl`** so the body never passes through model output — `curl -fsSL https://www.contributor-covenant.org/version/2/1/code_of_conduct/code_of_conduct.md -o CODE
Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • feature — 100% identical, 0 lines differ
skills/feature/SKILL.md · 554 lines

How it starts

The opening of the file, as written. The whole thing — 554 lines — stays where its author put it; the contents beside it link to each section on GitHub.

${var} — Selector target[:arg] [--fix-issues], target ∈ {watched, external, dormant}. Empty or watched = build a feature on every watched repo (one PR each); external:<owner/repo> = one best enhancement on that external repo; dormant = revive the highest-scoring dormant repo. A leading build:<owner/repo | issue-url | free-text instruction> — the shape the Telegram "ship which opportunity?" force-reply sends via repo-scanner's offer — is intercepted first and routed into the external branch on that target/instruction. --fix-issues biases the chosen branch toward fixing an open GitHub issue. Full grammar below.

This skill merges three repo-work modes behind one selector so no capability is lost:

Branch Selector Per run Repo source Use it for
watched (§A) empty / watched Iterates every watched repo, ships one PR per repo memory/watched-repos.md Weekly broad sweep — keep every repo moving
external (§B) external[:owner/repo[#N]] Single repo per run memory/topics/repos.md catalog (or ${var} override) Targeted enhancement / issue fix on one repo
dormant (§C) dormant[:owner/repo] Single dormant repo per run memory/watched-repos.md scored by dormancy Reactivate a stale high-★ repo with one visible fix

Today is ${today}. Read memory/MEMORY.md and the last 7 days of memory/logs/ before starting — and before notifying, drop anything already reported in the last ~3 days of logs.

Selector

Telegram force-reply interception — check this FIRST, before parsing anything else. If ${var} starts with build:, it is the "ship which opportunity?" force-reply that repo-scanner offers (routed here as feature with var="build:<the operator's reply>"). Strip the prefix with ${var#build:} and treat the remainder as an external build target/instruction — route it straight into the external branch (§B), reusing that branch's existing logic (do not run the watched or dormant branches for a build: value, and do not duplicate §B). Normalize the remainder into a §B target:

  • owner/repo → run §B as if external:owner/repo (B2 "clone that repo").
  • an issue URL (https://github.com/owner/repo/issues/N) or owner/repo#N → run §B as if external:owner/repo#N (B2 "fetch that issue").
  • free text like owner/repo: add retry to the client → run §B on owner/repo, using the trailing text as the explicit enhancement to build (see §B4's "requested enhancement" note — skip the auto-pick).
  • anything else with no parseable repo → run §B passing the whole remainder as the enhancement instruction; §B B2/B4 already reason about selecting and scoping a target.

The remainder may itself contain colons — keep them. This is a complete run once §B ships its PR (or cleanly skips); do not then fall through to the normal selector.

Parse ${var} into a target and optional flags:

  • Empty or watchedwatched branch (§A): sweep every watched repo, ship one feature PR each.
  • watched:<feature-spec>watched branch, but build <feature-spec> on the FIRST watched repo only.
  • externalexternal branch (§B): auto-pick one catalog/watched repo and make the best single enhancement.
  • external:<owner/repo>external branch on that specific repo.
  • external:<owner/repo>#Nexternal branch on that specific issue.
  • dormantdormant branch (§C): auto-select the highest-scoring dormant repo and revive it.
  • dormant:<owner/repo>dormant branch on that specific repo (skip selection).
  • Trailing --fix-issues (with any target) → bias the branch toward fixing an OPEN GitHub issue rather than a proactive change (see each branch's "with --fix-issues" note).

Example values: `` (empty → watched sweep), watched, watched:add a dark-mode toggle, external, external:acme/api, external:acme/api#42, dormant, dormant:acme/legacy-lib, external --fix-issues, dormant --fix-issues.

Read the full file on GitHub · 554 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. 2d ago First seen · 554 lines · 46 tokens per session scan C 2a02d778f165

Subscribe to this mod's changes

feature is a skill published in the GitHub repository aeonfun/aeon (706 stars, last pushed 2d ago), licensed MIT. It adds 46 tokens to every session and 7,141 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 2 findings (recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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