plan-reflect

A review command for a recently completed implementation plan that compares the plan with what actually happened.

In plain words
What is it for?
It gathers evidence from the plan, files, changes, and task history, classifies lessons into update types, removes personal information, and writes `.claude/planner-context.md`.
Why use it?
It captures useful lessons while the work is fresh and updates the project’s shared planning context.

Command

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/spumer/i-m-senior-developer/plan-reflect
Clone the repo
git clone --depth 1 https://github.com/spumer/i-m-senior-developer
Per session 26 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 290 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 $0.00026 $0.00290
Opus 5 $0.00013 $0.00145
Sonnet 5 $0.00005 $0.00058
Haiku 4.5 $0.00003 $0.00029

Measured 2d ago against content hash a31da15c57da, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan-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 2d 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.

plugins/planner/commands/plan-reflect.md · 19 lines

What it actually says

Activate the planner-reflect skill and follow its workflow.

Resolve the feature directory from $ARGUMENTS:

  • If $ARGUMENTS is provided — use it as the feature directory.
  • If $ARGUMENTS is empty — collect candidate directories from paths explicitly used in the current task and from changed paths reported by Git. Keep only candidates containing PLANNER_EXECUTION.md.
  • Continue only when exactly one candidate remains. If there are none or several, ask for an explicit feature directory and write nothing. Never choose by modification time.

Run the skill end-to-end: gather the five evidence sources, classify findings into the four update types, mask any PII per the skill's PII section, write to <project-root>/.claude/planner-context.md, and emit a chat summary that always includes a "Lessons learned" block.

If no PLANNER_EXECUTION.md exists anywhere relevant, emit the graceful exit message from the skill's "When evidence is missing" section (nothing to reflect on; run /plan first) and stop without writing.

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. 2d ago First seen · 19 lines · 26 tokens per session scan A a31da15c57da

Subscribe to this mod's changes

plan-reflect is a command published in the GitHub repository spumer/i-m-senior-developer (11 stars, last pushed 11d ago), licensed MIT. It adds 26 tokens to every session and 290 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 2026-08-31.