I'll start by reading the relevant files to understand the current state before making changes.

Now let me look at the snapshot files to understand their structure, and the existing k8s helpers.

Let me look at the latest snapshot to understand its structure.

Good, I can see the snapshot structure. Now I have all the context needed. Let me create the task list and start implementing.

Now let me check what packages are available for postgres access and look at how the project uses postgres.

Good — postgres package is used in packages/db. Let me check how it's imported there so I follow the same pattern.

Now let me create the schema verification script.

Now integrate into the deploy pipeline.

Now integrate into db-migrate.ts.

Fix the _journal.json timestamp for entry 0009.

Now let me verify the script works against the local database.

The postgres package is in packages/db, not at the root. Let me check the root dependencies and adjust the approach.

postgres isn't a root dependency. The script runs from the root, so it can't resolve postgres. Let me check how other scripts that need DB access handle this — like db-query.ts.

The other scripts shell out to bun run --cwd packages/db to use its dependencies. I should rewrite the verification script to not directly depend on postgres — instead, I can place it inside packages/db or use a simpler approach. The cleanest option: use $ from bun to shell out to psql-style query, or place the script so it runs from within packages/db context.

Actually, the simplest approach is to run it with --cwd packages/db so it resolves from the packages/db workspace. But the script itself is in scripts/. Let me instead just use bun's $ to run a SQL query via the postgres client from within packages/db.

The cleanest fix: the script should be self-contained and use bun's native SQL or run from the packages/db context. Let me restructure to run the DB query via a small inline approach — I'll use Bun.sql if available, or better yet, just change the script to be run from within the packages/db workspace context in the callers. But the deploy and migrate scripts would need to adjust their invocation.

The simplest approach: add postgres as a root devDependency. But that's not great. Better: have the callers run it with --cwd packages/db. Let me update the script to resolve the meta directory relative to itself correctly regardless of cwd, and update the callers.

I'll update the callers to run with --cwd packages/db so the postgres import resolves, and adjust the script's ROOT path accordingly.

Now update the deploy script to run with --cwd packages/db:

And update db-migrate.ts similarly:

Now let me test again:

Need to use the full path since cwd is packages/db:

The --cwd flag doesn't affect module resolution for the script itself — bun resolves postgres from the script's directory, not the cwd. Let me check how bun resolves node_modules in a monorepo.

It's only in packages/db/node_modules. Bun resolves from the script's file path, not cwd. The simplest solution: move the script into packages/db as a script, or use a different approach to avoid the postgres dependency entirely.

The cleanest solution is to place the verification script inside packages/db/ where it can resolve postgres. Let me move it there.

I see there's already a scripts/reset.ts inside packages/db. Let me put the verify script there too and update references.

Now update the path references in the script itself:

Now the script lives at packages/db/scripts/verify-schema.ts. The ROOT is packages/db/scripts/.. which is packages/db, and META_DIR resolves to packages/db/packages/db/drizzle/meta — that's wrong. Let me fix the paths.

Also remove the unused key variable in the for-of loop:

Now update the callers to reference the new location:

Now test:

The script works. Let me also verify it properly detects missing columns by checking the output format with a bogus URL (or I can just trust the logic since it passed). Let me do a quick sanity check on TypeScript compilation for the modified files.

All 18 packages pass TypeScript checks. Let me verify the final state of all modified files.

Everything looks good. Let me also verify the deploy.ts step ordering:

All changes are in place. Here's a summary of what was done:

Changes made

1. CLAUDE.md — Added migration warning

Added a CRITICAL warning to the "Schema Changes Workflow" section about never hand-writing migration files or editing _journal.json.

2. packages/db/scripts/verify-schema.ts — NEW schema verification script

• Reads the latest drizzle snapshot from packages/db/drizzle/meta/
• Extracts expected tables and columns
• Connects to the target DB via DATABASE_URL
• Queries information_schema.columns for actual schema
• Reports missing tables/columns and exits 1 on mismatch
• Quiet on success (single checkmark line)
• Placed in packages/db/scripts/ so it can resolve the postgres dependency

3. scripts/deploy.ts — Added verifySchema step

Runs immediately after migrateDb and before Docker build. If verification fails, step() aborts the deploy.

4. scripts/db-migrate.ts — Added verification after migration

Schema verification runs after db:migrate completes within the same port-forward session.

5. packages/db/drizzle/meta/_journal.json — Fixed timestamp

Changed entry 0009's when from 1738270000000 (Jan 2025) to 1769800000000 (Jan 30 2026), placing it correctly between entries 0008 and 0010.

Verification

• TypeScript checks pass across all 18 packages
• Schema verification script tested successfully against local DB: ✓ Schema verified: 21 tables, all columns present

Note on step 5 from the plan (inserting missing hash on prod)

The plan mentions inserting the migration hash into prod's __drizzle_migrations table. That requires running a command against the production database (bun run db:query prod ...) which I haven't executed — that's a manual operational step you'll want to do yourself with the appropriate credentials and access.

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Let me first understand the drizzle migrations table structure and how drizzle computes the hash.

I can see dev is missing migration 0009 (jumps from id 9 → 10, with entries for 0008 and 0010 but not 0009). The newer migrations use SHA-256 hashes. Let me figure out the hash and check prod too.

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It could be. Let me first check what local looks like so we can compare all three.

All three databases have the exact same 10 rows — all are missing migration 0009. So the simplest fix is:

1. Run drizzle-kit migrate against all three — now that we've fixed the _journal.json timestamp, drizzle should see 0009 as unapplied and try to run it.

The catch is that the ALTER TABLE statements will fail on any DB where the columns already exist. Let me check which DBs actually have those columns already.

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Here's the state:

DB	Override columns?	0009 recorded?
Local	Yes	No
Dev	No	No
Prod	Yes	No

So the cleanest path:

1. Dev — just run drizzle-kit migrate. Since columns don't exist there, it'll apply 0009 cleanly and record the hash.
2. Local & Prod — columns already exist, so the SQL would fail. After dev succeeds, grab the hash drizzle recorded for 0009 and insert it on local and prod.

Let me start with dev.

Interesting — drizzle says "migrations applied successfully" but verification caught missing columns. The verification is already proving its value. Let me check what actually happened.

So drizzle silently skipped 0009 again — it still reported success with 10 rows unchanged. The issue is positional: drizzle sees 10 records in __drizzle_migrations and 11 entries in the journal, but because entry 10 (0010) is already in the table, it thinks everything is done. Entry 9 falls within the "already applied" range by position.

The fix needs to be direct. Let me:

1. Dev: Apply the SQL manually, then insert the migration record
2. Local & Prod: Just insert the migration record (columns already exist)

First, let me compute the hash drizzle would use.

Let me verify this is the right algorithm by checking an existing migration's hash.

That matches migration 0010's hash in the table exactly (aa68be6e...). So the hash for 0009 is 61e96a22a2ec42072f263a2cdbeb936994ffbb9cd928725f8fa18030beeab187.

Now let me apply the SQL on dev and insert the migration record on all three.

Dev columns applied. Now insert the migration record on all three. The created_at should be 1769800000000 (the corrected timestamp).

All three inserted. Now let me verify all three databases pass schema verification.

Local schema verified. All three DBs now have 11 migration records. Let me also run the full verify against dev and prod to confirm.

All three databases have identical assessment_evaluations columns (16 each) and 11 migration records. Everything is in sync.

Here's the final summary of all changes:

Files modified:

• CLAUDE.md — Added CRITICAL warning about never hand-writing migrations
• packages/db/scripts/verify-schema.ts — NEW schema verification script
• scripts/deploy.ts — Added verifySchema step after migrateDb
• scripts/db-migrate.ts — Added verification after migration
• packages/db/drizzle/meta/_journal.json — Fixed entry 0009 timestamp

Database fixes applied:

• Dev: Applied migration 0009 SQL (7 columns + FK constraint), inserted migration record
• Local & Prod: Inserted missing migration record (columns already existed)
• All three DBs now have 11 migration records and matching schemas

The verification script already proved its value — it caught that drizzle's "migrations applied successfully!" message was lying about dev.

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The plan focused on the migration tracking, but the actual runtime bug would be in the code. Let me check — the git status shows apps/api/src/routes/assessment-chat.ts is modified.

The diff shows the fix but let me look at the concurrency guard to confirm the full picture.

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Let me look at the assessment completion flow — where the evaluation happens and the score gets saved.

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The symptom is: assessment ends, but score isn't shown — an error message appears instead. Let me find where the score gets fetched on the frontend side after ---ASSESSMENT_COMPLETE---.

So on completion it sets setShowEvaluation(true). Let me see the AssessmentEvaluation component.

The component fetches from /api/assessments/${slug}/attempts/${attemptId}/evaluation. Let me find that endpoint.

There it is. Line 310-314 — db.select().from(assessmentEvaluations) with no column selection. Drizzle generates a SELECT * including the 7 override columns. When those columns didn't exist in prod, Postgres returned an error, the fetch returned a non-ok response, and the component showed "Evaluation not yet available."

The missing columns are now fixed on all three databases, so this bug is resolved. The root cause chain was:

1. Migration 0009 (adding override columns) was skipped silently on prod
2. Assessment evaluation writes succeeded — insert().values(...) only wrote the columns it specified
3. But evaluation reads failed — select().from(assessmentEvaluations) generates SQL for all columns in the schema, including the 7 override columns that didn't exist in the DB
4. The /api/assessments/:slug/attempts/:attemptId/evaluation endpoint returned a 500
5. The frontend caught the error silently and showed "Evaluation not yet available"

That's now fixed by the migration repair we just did on all three databases.

Yes. The evaluation data was written successfully — the insert().values(...) at assessment-chat.ts:269 only specified columns that already existed (attemptId, overallGrade, overallPoints, portionGrades, overallFeedback, rawEvaluation). The rows are in the assessment_evaluations table with the grades intact.

The failure was only on reads. Now that the override columns exist, select().from(assessmentEvaluations) will succeed, and students will see their scores when they revisit.

No debugging statements or unnecessary logging in the changes. There are two untracked files to address:

I'll split this into two commits: one for the migration fix and schema verification infrastructure, and one for the assessment-chat error handling fix.

Two commits created:

• 393ec6a — Schema verification infrastructure + migration 0009 timestamp fix
• f3f60d7 — Assessment chat error handler saving assistant message to unblock concurrency guard

TODO.md left untracked as requested.

Let me read both files.

Let me go through the existing TODOS.md items first to check for completed ones, then we'll handle the TODO.md items.

TODOS.md item 1: Allow multiple sessions per activity Is this still open, or has it been completed?

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The unique constraint on (meetingSlug, semester) is still there at line 24. Still open.

TODOS.md item 2: TextSubmission visible to all group members instead of just observer — is this fixed?

No observer/role-based filtering — the text submission is shown to all non-guest, non-instructor users regardless of their activity role. Still open.

TODOS.md item 3: Text submissions may not be associated with correct stage — still open?

There's still a TODO at line 115 about session ID, and stageIndex comes from useCurrentStageIndex(). I can't fully verify correctness from here, but the TODO comment suggests it's still open.

Here's the status of the 5 existing TODOS.md items:

#	Item	Status
1	Allow multiple sessions per activity	Open — unique constraint still exists
2	TextSubmission visible to all group members	Open — no role filtering
3	Text submissions wrong stage association	Open — TODO comment still in code
4	Adviser share links with observer	?
5	Instructor stage count shows individuals not groups	?

Want me to check items 4 and 5, or are you already sure of their status?

Both still open. All 5 existing TODOS.md items remain valid.

Now let me go through the TODO.md items one at a time to categorize them. Here's the list:

1. Timer still running after session ended
2. Members-only link on the moltbook activity
3. More talk-to-your-partner instructions needed
4. More time awareness on activity page (total time, time left in time box)
5. Allow students to indicate genuine completion / time-gate answer entry
6. Work theory of mind into assessment
7. Show join code on every members page, not just leader
8. Allow students to leave groups, handle exit conditions
9. Design doc h1s are hyperlinked, blog is not — probably don't need to hyperlink those
10. Separate "read this" and "discuss this" stages with submissions
11. Good that we split the first part (observation, not actionable)
12. Show time targets on assessment overview page next to timer
13. Encourage students to review Turing Test before Assessments and Agents activity
14. Add "view as role" for group activities (vs view as student)
15. More "this is being logged" warning on assessments
16. Problem with conversational assessment not continuing

Item 11 looks like a note rather than a TODO, and item 16 is likely the bug we just fixed. How would you like to handle these — should I present them grouped by theme, or go through each one for a keep/drop/merge decision?

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Let me check a few items in the codebase to flesh them out properly before asking you about the ones I can't resolve on my own.

Good findings. I have a few questions before I draft the integrated TODOS.md.

Good context. Let me also quickly check the h1 anchor issue and the stop session confirm behavior.

Found it. rehype-autolink-headings with behavior: "wrap" wraps all headings (including h1) in anchor tags. The h1 item is about excluding h1 from that plugin.

Now I have everything I need. Let me also check the "moltbook" activity for the members-only link issue.

The links are all external — the "members-only" issue is likely that some of these links (404 Media, etc.) might be behind paywalls or require accounts. That's a content issue, not a code issue. Let me now draft the integrated TODOS.md.

Now let me clean up the old TODO.md.

Clean diff — just TODOS.md changes, no debugging statements or issues. Only one modified file, so a single commit is appropriate.

Committed as f3cbefc. Working tree is clean.

Let me read the actual timer code to verify my understanding of the potential bug.

Now I can see the bug. Let me verify by checking how the timer value is read in existing tests.

Now let me also check the student-side timer test ID.

Now I see both bugs clearly. Let me also check how StageRow receives its props — specifically whether isStopped is passed to it.

I now have a clear picture of both bugs. Let me write the plan.