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.
git clone --depth 1 https://github.com/agentsea/flashbackerWrote 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.
[](https://agentmods.dev/commands/agentsea/flashbacker/session-start)<a href="https://agentmods.dev/commands/agentsea/flashbacker/session-start"><img src="https://agentmods.dev/badge/commands/agentsea/flashbacker/session-start/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.
<a href="https://agentmods.dev/commands/agentsea/flashbacker/session-start"><img src="https://agentmods.dev/badge/commands/agentsea/flashbacker/session-start.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00348 |
| Opus 5.5 | $0.00000 | $0.00139 |
| Sonnet 5.5 | $0.00000 | $0.00070 |
| Haiku 4.5 | $0.00000 | $0.00035 |
Grade A, and why
session-start 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 1mo 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.
What it actually says
Session Start
Manual session recovery after compaction or when starting fresh. Uses the hybrid AI+Computer approach for reliable context gathering.
Task
-
Gather Context: Run
flashback working-plan --contextto get:- Project memory from REMEMBER.md
- Current working plan from WORKING_PLAN.md
- Previous session conversation history (not empty current session)
- Current session information
-
Load Context: Use
flashback session-start --contextto get recent conversation transcript -
Understand what you work working on from the conversation transcript, REMEMBER.md, and WORKING_PLAN.md:
- What this project is about (from REMEMBER.md)
- What you were working on (from WORKING_PLAN.md)
- What happened in the last session (from conversation log)
-
Welcome User: After loading context, provide a brief summary of what you understand about the project and ask "What would you like to work on now?"
Context Gathering Command
The CLI command handles all file reading and context formatting consistently:
flashback working-plan --context && flashback session-start --context
This outputs structured context including:
- Project memory and key learnings
- Current development plan and priorities
- Previous conversation history for continuity
- Session restoration instructions
Usage Notes
This command is used manually when:
- Starting work after auto-compact (no PostCompact hook exists)
- Beginning a fresh session and need project context
- Hook didn't trigger properly and need manual context restoration
CRITICAL: Gets previous meaningful conversation, not empty current session context.
Usage: /fb:session-start
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.
- 1mo ago First seen · 43 lines · 0 tokens per session scan A 2dc00f7cbf71
session-start is a command published in the GitHub repository agentsea/flashbacker (57 stars, last pushed 9mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 348 tokens. 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.
Other commands, from other repositories
minutes-ideas
Surface recent voice memos and ideas captured from any device. Use when the user asks "what ideas did I have?", "what were my recent memos?", "what did I record while walking?", or wants to recall a captured thought.
learn
Force claude-smart to extract learnings from this session now.
memory-store
Store an insight, decision, or pattern to memory.
analyze-context
USE WHEN you want to analyze project context before starting work on a task. Calls context + recall, then synthesizes goals, decisions, gotchas, and relevant memories into a pre-task brief.
cc-memory
Configure persistent memory that survives across sessions using a layered approach: split rule files for always-loaded context, auto-memory for organic learning, and optional MCP-backed long-term memory for large codebases.
lians-recall
Recall current (non-stale) facts from Lians memory, optionally as-of a past date.