eo-recall

eo-recall is a skill for Claude Code, Codex from SimpleEve/eo-skills. It costs 88 tokens per session (1,428 once invoked), scanned A, original, MIT.

A read-only project-memory and explanation tool for finding how a codebase works and why its decisions were made. It uses project documents and source code as evidence.

In plain words
What is it for?
Use it to trace current behavior, locate relevant code, explain past decisions, and distinguish documented facts from conclusions drawn from the code.
Why use it?
It helps answer forgotten design and implementation questions without inventing details or changing the project.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to trace current behavior, locate relevant code, explain past decisions, and distinguish documented facts from conclusions drawn from the code.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/simpleeve/eo-skills/eo-recall
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.

Any agent
npx skills add SimpleEve/eo-skills --skill eo-recall
Clone the repo
git clone --depth 1 https://github.com/SimpleEve/eo-skills

Made for: Claude Code, Codex.

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 eo-recall

README.md
[![agentmods](https://agentmods.dev/badge/skills/simpleeve/eo-skills/eo-recall/github.svg)](https://agentmods.dev/skills/simpleeve/eo-skills/eo-recall)
Your own site
<a href="https://agentmods.dev/skills/simpleeve/eo-skills/eo-recall"><img src="https://agentmods.dev/badge/skills/simpleeve/eo-skills/eo-recall/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.

agentmods 80×15 button for eo-recall

Your own site · 80×15
<a href="https://agentmods.dev/skills/simpleeve/eo-skills/eo-recall"><img src="https://agentmods.dev/badge/skills/simpleeve/eo-skills/eo-recall.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,428 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00088 $0.01428
Opus 5 $0.00044 $0.00714
Sonnet 5 $0.00018 $0.00286
Haiku 4.5 $0.00009 $0.00143

Measured 6d ago against content hash f53c75204bc0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

eo-recall 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 6d 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.

eo-recall/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

eo-recall — 回忆与解释

项目记忆与代码的只读检索入口:把「我忘了当初……」变成一次有出处、分口径的检索问答。严格只读——除 tmp/eo/explain/ 的一次性解释页外不写任何文件。

核心原则

  1. 查了才答:答案必须来自本次检索到的文档/代码,每个论断带出处(文档路径或 file:line)
  2. 无记载不编造:文档里查不到就明说「文档无记载,以下是我从代码现读的」——把「回忆」和「现场推断」显式分开
  3. 口径分层:需求设计视角与代码实现视角分开作答,不搅在一起
  4. 定位纪律.codegraph/ 索引存在则 codegraph explore 优先;不存在则走 INDEX 收敛 + 源码直读,不全局盲扫

前置

必须能找到 .eo-project.json。同目录存在 .eo-project.local.json 时顶层字段覆盖合并(local 优先)。找不到 → 报错退出,提示运行 /eo-project-init

工作流程

第一步:问题分类(可复合)

问的是 类型 主信源
「现在是什么样 / 规则是什么」 现状 state/ 现状篇(state.enabled 时)→ codegraph(有索引时)→ 源码
「代码在哪、怎么实现的」 实现 codegraph(有索引时)→ 源码
「当时为什么这么定」 缘由 change §1 已钉决策 → decisions/ → brainstorm/

复合问题(最常见:「这个系统当时怎么设计的」= 现状 + 缘由)按需叠加信源。

第二步:检索瀑布

  • 现状/实现state/ 已启用(配置 state.enabled)时先读 eo-doc/state/ 对应现状篇(派生快照;篇≠码以代码为准,并提示可跑 /eo-doc-manager sync 刷新);随后 .codegraph/ 索引存在则 codegraph explore "<自然语言问题>" 优先召回相关符号源码与调用链;不存在则按目录结构收敛、直读源码相关段落(不通读文件)
  • 缘由eo-doc/changes/INDEX.md 找相关 change → 读其 §1 意图与已钉决策;再查 <project_root>/decisions/(扫其 INDEX.md,无 INDEX 则按文件名收敛)与 <project_root>/brainstorm/ 的相关记录;涉及外部世界(第三方 API / 平台规则 / 竞品 / 选型)→ 按 ../eo-shared/research.md 消费规则查 <project_root>/research/;lessons 若 trigger 命中也一并带上(踩坑背景常常就是「为什么后来改成这样」)
  • 候选 >3 或全无命中 → 追问关键词,不硬猜

第三步:分层作答

## 需求上(设计口径)
<规则/流程/边界,出处:change <id> §1、decisions/2026-xx.md>

## 代码上(实现口径)
<入口、关键路径、数据流,出处:src/xx.ts:120-160>

## 当时为什么这么定(若问及)
<已钉决策 + 理由,出处>

⚠️ 文档与代码不一致处 / 文档无记载处,单独列出(以代码为准)
  • 不确定的就说不确定,不填补空白

第四步:富输出(按需,默认不产文件)

  • 流程 / 状态机 / 多角色交互类逻辑 → 主动提议:「画个 mermaid?」(对话内直接给,规范见 ../eo-doc-manager/references/mermaid.md
  • 盘根错节的大逻辑(多系统联动、你需要反复对照的)→ 提议生成一次性自包含 HTML 解释页tmp/eo/explain/<date>-<topic>.html,零外部依赖、用项目真实名词与数据、可交互(点击展开/分步演示);它是可丢弃工件(见 ../eo-shared/conventions.md),有长期价值的结论应沉淀到 decisions/lessons(提示用户走 /eo-project-record)而不是留在 tmp

Read the full file on GitHub · 76 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. 6d ago First seen · 76 lines · 88 tokens per session scan A f53c75204bc0

Subscribe to this mod's changes

eo-recall is a skill published in the GitHub repository SimpleEve/eo-skills (31 stars, last pushed 3d ago), licensed MIT. It adds 88 tokens to every session and 1,428 once invoked, about $0.0004 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 2026-09-04.

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