retrospective

retrospective is a skill for Claude Code from martineserios/thebrana. It costs 34 tokens per session (2,617 once invoked), scanned D, original, MIT.

A command for recording lessons learned and routing them into a project’s memory system.

In plain words
What is it for?
It is for capturing findings after unexpected issues, workarounds, research, or reusable patterns.
Why use it?
It helps preserve useful discoveries, recurring solutions, architectural decisions, and other knowledge in the place where they can be reused.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; reads .claude/ paths; names the AskUserQuestion tool.

Part of the brana plugin — 56 skills, 4 commands, 14 agents, 13 hooks shipped together

Good fit It is for capturing findings after unexpected issues, workarounds, research, or reusable patterns.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/martineserios/thebrana/retrospective
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 martineserios/thebrana --skill retrospective
Clone the repo
git clone --depth 1 https://github.com/martineserios/thebrana

Made for: Claude Code.

Or install brana, the plugin that ships this one along with the rest of its 56 skills, 4 commands, 14 agents, 13 hooks.

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 retrospective

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/martineserios/thebrana/retrospective"><img src="https://agentmods.dev/badge/skills/martineserios/thebrana/retrospective.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,617 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 2 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 $0.00034 $0.02617
Opus 5 $0.00017 $0.01308
Sonnet 5 $0.00007 $0.00523
Haiku 4.5 $0.00003 $0.00262

Measured 7d ago against content hash 2092766e34c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade D, and why

retrospective scanned grade D 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 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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

<!-- Draft rule — review, adjust, then place in system/rules/{name}.md -->

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

count=$(grep -c "^## " ~/.claude/memory/knowledge-staging.md 2>/dev/null || echo 0)
system/skills/retrospective/SKILL.md · 320 lines

How it starts

The opening of the file, as written. The whole thing — 320 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Retrospective

Store a learning in the memory taxonomy. Classifies the input by type, then routes to the canonical destination. No ruflo dependency — flat files are primary.

Spec: memory-taxonomy-ddd.md memory-taxonomy-sdd.md


ToolSearch("select:mcp__ruflo__memory_search")

Step 1 — Collect the learning

If $ARGUMENTS is non-empty, use it as the learning text. Otherwise ask:

"What did you learn? Describe the situation and the finding."


Step 2 — Classify

Apply the decision tree in order. Stop at first match.

1. Is this ephemeral — only useful for resuming this session?
   → Session state (skip retrospective; write via session-end hook)

2. Does this say "always X" or "never Y" with no context needed to apply it?
   → Rule

3. Is this a why-we-chose-X architectural or strategic choice with explicit tradeoffs?
   → Decision

4. Is this a pointer to where something lives in an external or cross-project system?
   → Reference

5. Is this a reusable solution to a recurring problem shape?
   → Pattern

6. Everything else — domain understanding, research finding, conceptual model
   → Knowledge

Set type, destination, and gate (auto | human) from the table:

Type Destination Gate
Rule system/rules/ — draft only, human places human
Decision docs/architecture/decisions/ADR-NNN-*.md — stub, human commits human
Reference ~/.claude/memory/portfolio.md auto
Pattern ~/.claude/projects/{project}/memory/pattern_{slug}_{date}.md auto (after transferability filter)
Knowledge ~/.claude/memory/knowledge-staging.md auto
Session native memory dir — skip, handled by session-end auto

Tie-breaking: If two types are plausible, prefer lower-gate type (Pattern over Rule). Note the ambiguity in the draft so the user can override.

Read the full file on GitHub · 320 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 · 320 lines · 34 tokens per session scan D 2092766e34c2

Subscribe to this mod's changes

retrospective is a skill published in the GitHub repository martineserios/thebrana (3 stars, last pushed 2d ago), licensed MIT. It adds 34 tokens to every session and 2,617 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it D with 2 findings (hidden instructions, reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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