Quick Answer
Keep current project truth separate from project history.
Preserve a small authoritative brief containing the current objective, non-negotiable constraints, locked decisions, workflow and important definitions. Remove or clearly retire obsolete rules.
Use conversation history for continuity, but do not force AI to infer which of hundreds of past statements still governs the work.
The Problem Is Not Simply a Long Chat
A long conversation can be extremely useful when its context remains relevant.
The problem begins when old experiments, temporary fixes and replaced decisions sit beside current requirements with no clear difference in authority.
History Preserves the Journey
Projects change.
We may try an image-first workflow and later abandon it.
We may use word-count checks and later decide they are only descriptive.
We may create validators and later simplify the process.
The history should preserve those lessons. Production should not have to obey every historical state.
Create a Small Active Brief
Our preferred active context contains:
the project goal;
current standard;
locked terminology;
important constraints;
current workflow;
known limitations;
and any decision that would materially change the next output.
It should be short enough to read and maintain.
Retire Rules Explicitly
Do not merely add a new rule beside the old one.
State that the old rule is replaced.
This matters because many AI projects become bloated through additive correction: the system learns the new requirement without losing the old mechanism that caused the problem.
Separate Global Rules From Task-Specific Rules
A construction article may need buildability checks that a reflective AI article does not.
An image set may need exact-object continuity that a conceptual hero image does not.
Keeping specialized requirements local prevents the global standard from becoming unnecessarily complicated.
Refresh Context at Natural Boundaries
A new batch, new phase or major workflow redesign is a good time to restate the current truth.
This can be more effective than dragging every old conversation forward indefinitely.
Starting a new chat is much safer when the project state exists independently.
Clean Context Helps Humans Too
The source of truth is not only for AI.
It makes it easier for us to remember why the project currently works the way it does, detect contradictions and decide whether a new correction deserves permanent status.
Worthy Trying Verdict
Long context: Useful
Accumulated obsolete context: Harmful
Best defense: Small current source of truth
Best maintenance: Explicitly retire replaced rules
The lesson: Preserve the history, but feed production the current truth.