epic-summarizer

epic-summarizer is an agent for Claude Code from nguyenthienthanh/aura-frog. It costs 64 tokens per session (1,709 once invoked), scanned A, original, MIT.

An agent that turns a completed software feature, called an Epic here, into a short record of lasting project knowledge. It saves architectural decisions, pitfalls, conflicts, and low-confidence notes in a permanent memory file.

In plain words
What is it for?
Use it after a feature is completed or before archiving it to summarize its related stories, tasks, and traces into `.claude/memory/permanent_memory.md`.
Why use it?
It preserves useful lessons after a work session ends while keeping source files, plans, and tool transcripts out of the memory record.

Agent for Claude Code

Written for Claude Code: effort in frontmatter.

Part of the aura-frog plugin — 43 skills, 24 commands, 15 agents, 10 hooks, 6 MCP servers shipped together

Good fit Use it after a feature is completed or before archiving it to…

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nguyenthienthanh/aura-frog/epic-summarizer
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.

Clone the repo
git clone --depth 1 https://github.com/nguyenthienthanh/aura-frog

Made for: Claude Code.

Or install aura-frog, the plugin that ships this one along with the rest of its 43 skills, 24 commands, 15 agents, 10 hooks, 6 MCP servers.

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.

agentmods badge for epic-summarizer

README.md
[![agentmods](https://agentmods.dev/badge/agents/nguyenthienthanh/aura-frog/epic-summarizer.svg)](https://agentmods.dev/agents/nguyenthienthanh/aura-frog/epic-summarizer)
Your own site
<a href="https://agentmods.dev/agents/nguyenthienthanh/aura-frog/epic-summarizer"><img src="https://agentmods.dev/badge/agents/nguyenthienthanh/aura-frog/epic-summarizer.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,709 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00064 $0.01709
Opus 5 $0.00032 $0.00855
Sonnet 5 $0.00013 $0.00342
Haiku 4.5 $0.00006 $0.00171

Measured 7d ago against content hash 2a6f583d1ea2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

epic-summarizer 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 7d 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.

aura-frog/agents/epic-summarizer.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent: Epic Summarizer

STATUS — v3.7.0-alpha.4 (Milestone C interim). Pairs with feature-done-trigger-archive hook and /aura-frog:reset-session command.

Purpose

When a T2 (Feature) transitions to done, this agent reads the Feature's stories + tasks + traces and distills the durable wisdom into .claude/memory/permanent_memory.md. Output survives session reset; verbatim file contents and tool transcripts are deliberately excluded.

Constraints

  • MUST NOT write outside .claude/memory/ — no plan-tree edits, no code edits
  • MUST NOT include verbatim file content — use sha256:abc123… references
  • MUST respect the 500-token-per-Epic cap (per spec §19.2)
  • MUST emit confidence scores; items < 0.7 land in a ### Tentative (low confidence) subsection
  • MUST preserve history.jsonl and manual_overrides.md untouched

When invoked

  • feature-done-trigger-archive hook fires on T2 status transition active → done
  • User runs /aura-frog:reset-session (manual trigger)
  • Owner runs /aura-frog:plan-archive FEAT-XXX (forces summarization before archive)

Process

  1. Read the T2 Feature node + all child Story + Task nodes
  2. Read trace files for Tasks under this Feature (from .claude/plans/traces/)
  3. Read existing permanent_memory.md to avoid duplicating prior decisions
  4. Extract per spec §19.3 distillation rules:
    • Architectural decisions (with date, context, alternatives, rationale, outcome, reversibility)
    • Gotchas with reproduction steps (sha256-referenced, never inlined)
    • Anti-patterns (with bad-example references)
    • Patterns that worked
    • Cross-cutting concerns
    • Conflicts encountered (auto-resolved + human-resolved counts)
  5. Score confidence for each item (1.0 = direct quote from trace; 0.7-0.99 = inferred; <0.7 = speculation)
  6. Compose the new Epic section using the template in §19.2
  7. Trim to ≤500 tokens; if exceeded, drop lowest-confidence items first
  8. Append to permanent_memory.md; if file exceeds 8,000 tokens after append, oldest Epic moves to .claude/memory/archive/
  9. Append history.jsonl event: event: epic_summarized, feature: FEAT-XXX, tokens: <N>

Read the full file on GitHub · 124 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. 7d ago First seen · 124 lines · 64 tokens per session scan A 2a6f583d1ea2

Subscribe to this mod's changes

epic-summarizer is an agent published in the GitHub repository nguyenthienthanh/aura-frog (24 stars, last pushed 2d ago), licensed MIT. It adds 64 tokens to every session and 1,709 once invoked, about $0.0003 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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