feature-tracking

A set of project documents that records the current state of each software feature. A feature track can contain the feature's plan, design, API, implementation details, tests, decisions, dependencies, and links to authoritative sources.

In plain words
What is it for?
Use it to create or update feature documentation, keep an index of features, record behavior and technical decisions, and validate that the documents are consistent.
Why use it?
It gives a team or coding agent a shared record of what a feature should do and what has changed. This reduces lost context between planning, implementation, review, and completion.

Skill for Claude CodeCodex

Part of the feature-track-claude plugin — 1 skill 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/junsw/feature-track/feature-tracking
Any agent
npx skills add JunsW/feature-track --skill feature-tracking
Clone the repo
git clone --depth 1 https://github.com/JunsW/feature-track

Made for: Claude Code, Codex.

Or install feature-track-claude, the plugin that ships this one along with the rest of its 1 skill.

Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 314 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 $0.00049 $0.00314
Opus 5 $0.00024 $0.00157
Sonnet 5 $0.00010 $0.00063
Haiku 4.5 $0.00005 $0.00031

Measured 3d ago against content hash f7b8de7248da, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

feature-tracking 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate_feature_tracks.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.

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.

plugins/feature-track-claude/skills/feature-tracking/SKILL.md · 40 lines

What it actually says

Feature Tracking

Use Feature Track as the current operational memory for feature work. The neutral spec is the source of truth; this Claude Code plugin is an adapter.

Read references/spec.md before changing feature docs.

Default Workflow

Before feature work:

  1. Read docs/features/README.md if it exists.
  2. Identify the feature id from the request, code module, route, domain name, or existing docs.
  3. Read docs/features/<feature-id>/README.md if it exists.
  4. If no track exists, create one and add it to the index.

During work, update the feature track when behavior, decisions, endpoints, data models, dependencies, rollout constraints, tests, or source-of-truth links change.

Before completion:

  1. Update the feature README for the actual outcome.
  2. Update docs/features/README.md if status, source-of-truth links, dates, or notes changed.
  3. Run validation when available:
python3 cli/feature_track.py validate --root .

If the project does not include this CLI, use scripts/validate_feature_tracks.py from this skill.

Invoke this plugin skill in Claude Code with:

/feature-track:feature-tracking
Files

What ships with it

4 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. 3d ago First seen · 40 lines · 49 tokens per session scan A f7b8de7248da

Subscribe to this mod's changes

feature-tracking is a skill published in the GitHub repository JunsW/feature-track (107 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 314 once invoked, about $0.0002 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 2026-08-30.

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