5 Safety Guards for Auto-Archiving Another AI Agent's Conversations into My Vault: Designing a Manus API Bridge

A developer built a Python bridge that polls the Manus API every five minutes and archives each task's messages into a shared knowledge vault's raw layer alongside Claude Code conversation logs. The script, run via launchd, uses five safety guards including reading its API key from the macOS Keychain on every run and tracking per-task revision timestamps in a state file to skip unchanged tasks. It only fetches and saves raw sources, leaving summarization to a separate reflection worker.

My Claude Code conversations were already saved to my knowledge vault automatically, but anything I gave to Manus stayed inside its browser UI. I couldn't search those tasks or find them later. Now a small Python bridge checks the Manus API every 5 minutes and saves each task to the same shelf as my Claude Code logs. It uses five safety guards to keep it quiet, self-healing and free of secrets. Last time, I wrote about how a weekly batch job in my skills CLI had been failing silently https://zenn.dev/bokuwalily/articles/skills-cli-weekly-silent-fail . This post continues with the same vault setup. It covers how I automatically collect conversations from an AI agent other than Claude Code Manus through its API and store them as primary sources in a shared vault . The vault has a location called raw/conversations/ , and Claude Code conversation logs pile up there automatically. Tasks I sent to Manus were different. The only way to see their contents was to open the task screen in the browser. When I later tried to remember what I had asked for in a task, it didn't show up in vault search or in the shared hot cache. Manus has a public API that lets you read your own task list and messages. That was the starting point for this bridge: fetch those tasks on a schedule and put them on the same shelf the raw layer as the Claude Code conversation logs. launchd runs ~/Documents/claude-obsidian/bin/manus-task-archive.py every 5 minutes, and the script writes its output to ~/Documents/my-knowledge-base/raw/manus-conversations/ . Note This script only fetches and saves . A separate, safe reflection worker handles summaries and "proposals to the vault." This script never does that work. A core rule of how I run the vault is to keep raw primary sources separate from the layer that interprets them. I don't want the API key in the code or in any file, so the script reads it from the macOS Keychain on every run. php KEYCHAIN SERVICE = "manus-vault-memory-archiver" def keychain key - str: result = subprocess.run "security", "find-generic-password", "-s", KEYCHAIN SERVICE, "-w" , text=True, capture output=True, check=False, if result.returncode = 0 or not result.stdout.strip : raise RuntimeError "Manus archive API key is unavailable in macOS Keychain" return result.stdout.strip The docstring also states that this worker never passes the key to print or write . If the key can't be fetched, the function raises an exception. The except in main logs it and the run stops. A broken key doesn't affect other jobs or conversations. The script fetches Manus tasks by paging through task.list → task.listMessages . Fetching every message on every run would be wasteful. Instead, the script saves each task's update time as its "revision" in a state file and skips the task if that value hasn't changed. php def task revision task: dict str, Any - str: for key in "updated at", "updatedAt", "modified at", "timestamp", "created at", "createdAt" : if task.get key not in None, "" : return str task key return "unknown" for task in accessible: ident = task id task if not ident: continue revision = task revision task if state "tasks" .get ident == revision: continue messages = list messages credential, ident archive task task, messages state "tasks" ident = revision Here is the actual state file AI/.runtime/manus-task-archive-state.json : { "tasks": { "rRkPkzEkUrImaYRXsI3sLY": "1790174319", "7hBaAc4dhs9hycZaAnC8z5": "1789628528", "5VXpxPKZkzify3yp9FA5LX": "1790077323" }, "accessible task count": 3 } The launchd log ~/.claude/logs/manus-task-archive.log shows that even though the job runs every 5 minutes, most runs find nothing new: 2026-09-26 07:43:32 +0900 ok: accessible=3 updated=0 2026-09-26 07:48:33 +0900 ok: accessible=3 updated=0 2026-09-26 07:53:34 +0900 ok: accessible=3 updated=0 2026-09-26 07:58:51 +0900 ok: accessible=3 updated=0 A run of accessible=3 updated=0 lines means the API returns 3 tasks each time, but none of their revisions changed, so nothing gets written. Of all my measurements, this was the clearest proof that the diff check works correctly. The launchd StartInterval is fixed at 300 seconds 5 minutes , set in ~/Library/LaunchAgents/com.shun.manus-vault-archive.plist . <key StartInterval</key <integer 300</integer <key ThrottleInterval</key <integer 60</integer <key LowPriorityIO</key <true/ <key Nice</key <integer 12</integer Overlapping runs on a 5-minute schedule would cause trouble, so the script uses a lock directory created with mkdir to prevent more than one run at a time. The case I paid attention to was a previous run crashing and leaving its lock behind. php def acquire lock - bool: STATE DIR.mkdir parents=True, exist ok=True if LOCK DIR.exists : try: age = time.time - LOCK DIR.stat .st mtime if age 1800: LOCK DIR.rmdir except OSError: pass try: LOCK DIR.mkdir return True except FileExistsError: return False If a lock is older than 30 minutes 1800 seconds, or six 5-minute cycles , the next run removes it. The system recovers on a later cycle before a human notices and runs rm . Releasing the lock also sits in a finally block, so the lock is always removed, whether the run crashes with an exception or exits normally. The log shows this working in practice: 2026-09-26 06:42:45 +0900 ok: accessible=3 updated=0 2026-09-26 06:48:15 +0900 error: RuntimeError: API request failed: <urlopen error Errno 8 nodename nor servname provided, or not known 2026-09-26 06:53:16 +0900 ok: accessible=3 updated=0 At 06:48, DNS resolution failed briefly and the run crashed with an exception. The finally block had already released the lock, so the next run 5 minutes later 06:53 finished normally with nothing blocking it. The lock design was meant to do exactly this: fix itself before a human notices. This raw layer becomes "primary source material for future AI agents to read." To keep secrets out of it, the script scrubs them with regular expressions. SECRET PATTERNS = re.compile r"\bsk- A-Za-z0-9 \- {16,}\b" , " REDACTED API KEY " , re.compile r" ?i \b ?:api - ?key|token|password|secret|bearer \s := \s ^\s '\" {8,}" , " REDACTED SECRET " , re.compile r"https?:// ?:meet\.google\.com|zoom\.us/j|teams\.microsoft\.com / ^\s \ +", re.I , " REDACTED MEETING LINK " , The comment in the code explains the design intent: Deliberately conservative. The archive is a private raw source, but it must not become an accidental secret store shared with future agents. The important part is the order of reasoning. I didn't start from "this raw store is personal, so it can be a little loose." I started from "future agents will read it, so keep it conservative." Zoom, Meet and Teams meeting URLs get the same treatment as API key patterns. Conversation logs often contain lines like "join from this link," and I don't want those saved permanently in the primary sources. Each archived Markdown file's modification time mtime is set to the time the task was last updated in Manus, not the time it was archived . output = RAW DIR / f"manus {ident}.md" atomic write output, "\n".join parts .rstrip + "\n" stamp = updated.timestamp os.utime output, stamp, stamp Without this, a task that finished 9 days ago but was archived for the first time today would appear as "something that just happened" in the shared hot cache and other indexes that sort by mtime. In fact, one of the files from the first archive run had an update date of 9/17: 会話ログ: Manus / Agent Manus / 7hBaAc4d 日時: 2026-09-17 07:02 UTC 更新: 2026-09-17 07:02 UTC Task ID: 7hBaAc4dhs9hycZaAnC8z5 Status: waiting The file was written today, but its mtime stays at 9/17, so it doesn't appear in the list of "today's events." Writes also go through atomic write , which writes a temp file and then calls os.replace . If the process dies partway through, no half-written file is left behind. After writing, if at least one task was updated, the script also runs the shared hot-cache update script: if updated files and UPDATE HOT.exists : subprocess.run sys.executable, str UPDATE HOT , check=False, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL This way, Manus tasks reach the vault's "recent sessions" list through the same path as the other raw conversation logs. | Guard | What it protects against | Implementation | |---|---|---| | Keychain-only credential | Key leaks | Call security find-generic-password on every run; never write the key in code | | Incremental sync by revision diff | Wasted API calls and duplicate writes | Compare state "tasks" ident with the revision | | Stale-lock self-healing | Permanent skips after a crash | Automatically rmdir a lock dir older than 1800 seconds on the next run | | Secret / meeting-link redaction | Secrets leaking into primary sources | Replace with 3 regex patterns | | mtime backdating | Breaking the index timeline | Pin the file to the task's update time with os.utime | task.get "task id" or task.get "id" , and for revisions, check keys in order from updated at through createdAt . RuntimeError once paging goes past MAX MESSAGE PAGES 100 . I chose "fail with an error I'll notice" over an infinite loop. urlopen error failure 2026-09-26 06:48 . Because lock release is in finally , the next 5-minute cycle recovered normally with no special handling. raw/ shelf as Claude Code conversation logs, accessible=3 updated=0 is the normal, most common result. rmdir Next time, I plan to write about how the reflection worker safely summarizes the Manus conversations in this raw layer and promotes them into the wiki. If you archive conversations from more than one AI agent, how do you keep secrets and outdated timestamps out of the shared record? Written by Lily — I ship iOS apps and automate my content stack with Claude Code. Follow along: Portfolio https://bokuwalily.com · X https://x.com/bokuwalily · GitHub https://github.com/bokuwalily