reflect

reflect is a command for coding agents from rlancemartin/claude-diary. It costs 13 tokens per session (3,914 once invoked), scanned A, original, MIT.

A command that reviews diary entries from Claude sessions to find repeated patterns and suggest changes to CLAUDE.md, a file that stores project or assistant instructions. It can focus on a time period, number of entries, project, or topic.

In plain words
What is it for?
Use it to examine recent or selected diary entries, skip entries already processed, write reflection records, and propose updates to the relevant CLAUDE.md file.
Why use it?
It turns scattered session notes into a small set of reusable lessons and helps avoid repeatedly making the same mistakes or decisions.

Command

Part of the claude-diary plugin — 2 commands 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 commands/rlancemartin/claude-diary/reflect
Clone the repo
git clone --depth 1 https://github.com/rlancemartin/claude-diary

Or install claude-diary, the plugin that ships this one along with the rest of its 2 commands.

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 reflect

README.md
[![agentmods](https://agentmods.dev/badge/commands/rlancemartin/claude-diary/reflect.svg)](https://agentmods.dev/commands/rlancemartin/claude-diary/reflect)
Your own site
<a href="https://agentmods.dev/commands/rlancemartin/claude-diary/reflect"><img src="https://agentmods.dev/badge/commands/rlancemartin/claude-diary/reflect.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,914 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 5.1 $0.00013 $0.03914
Opus 5 $0.00006 $0.01957
Sonnet 5 $0.00003 $0.00783
Haiku 4.5 $0.00001 $0.00391

Measured 6d ago against content hash 23e3297bf4ff, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

reflect 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.

commands/reflect.md · 391 lines

How it starts

The opening of the file, as written. The whole thing — 391 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Reflect on Diary Entries and Synthesize Insights

You are going to analyze multiple diary entries to identify recurring patterns, synthesize insights, and propose updates to the user's CLAUDE.md file.

Parameters

The user can provide:

  • Date range: "from YYYY-MM-DD to YYYY-MM-DD" or "last N days"
  • Entry count: "last N entries" (e.g., "last 10 entries")
  • Project filter: "for project [project-path]" (optional - filter to specific project)
  • Pattern filter: "related to [keyword]" (e.g., "related to testing" or "related to React")

If no parameters are provided, default to analyzing the last 10 diary entries.

Steps to Follow

  1. Check processed entries log:

    • Read ~/.claude/memory/reflections/processed.log to find already-processed diary entries
    • Format: [diary-filename] | [reflection-date] | [reflection-filename]
    • Example: 2025-11-07-session-1.md | 2025-11-08 | 2025-11-reflection-1.md
    • If file doesn't exist, all entries are unprocessed
    • Create the file if it doesn't exist: touch ~/.claude/memory/reflections/processed.log
  2. Locate diary entries:

    • Directory: ~/.claude/memory/diary/
    • Entries are named: YYYY-MM-DD-session-N.md
    • List all entries, sorted by date (newest first)
    • Exclude already-processed entries (unless user explicitly requests re-analysis)
  3. Filter entries based on parameters:

    • If date range specified: only include entries within that range
    • If entry count specified: take the N most recent entries
    • If project filter specified: only include entries where the Project field matches
    • If pattern filter specified: only include entries that mention the keyword in any section
  4. Read and parse filtered diary entries:

    • Read each diary entry file
    • Extract information from all sections
    • Pay special attention to:
      • User Preferences Observed
      • Code Patterns and Decisions
      • Solutions Applied (what works well)
      • Challenges Encountered (what to avoid)

Read the full file on GitHub · 391 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 · 391 lines · 13 tokens per session scan A 23e3297bf4ff

Subscribe to this mod's changes

reflect is a command published in the GitHub repository rlancemartin/claude-diary (379 stars, last pushed 8mo ago), licensed MIT. It adds 13 tokens to every session and 3,914 once invoked, about $0.0001 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.